Thomas Georg Karl Hirsch

Thomas Karl Georg Hirsch finished his Doutorado in Mechanical Engineering at the University of Karlsruhe (Technical University) in Germany in 1983. Since 1984 to present he is Research Director at the Institute of Materials Science at the University of Bremen. 1998 he was inaugurated as a full academic lecturer at the University of Bremen. His activities are Mechanical Behavior of Materials, Behavior of Heat Treated and Coated Materials and Material Compounds, Improvement of materials for car and aircraft companies, Improvement of fatigue strength by surface treatments, Effects of residual stresses on the mechanical behavior of materials, In situ measurements of residual stresses, Failure analysis. 2007 he was inaugurated as Professor and Collaborator at the Universidade Federal do Rio Grande do Sul

Informações coletadas do Lattes em 04/11/2022

Acadêmico

Formação acadêmica

Doutorado em Ciência dos Materiais

1978 - 1983

Universidade de Karlsruhe
Título: Fatigue Behavior of Shot Peened Titanium- and Aluminum Alloys
Orientador: Dr.rer.nat. Eckard Macherauch /Dr. rer. nat. Otmar Vöhringer

Mestrado em Engenharia Mecânica

1975 - 1978

Universidade de Karlsruhe
Orientador: Prof. Dr.-Ing. habil Peter Mayr

Graduação em Engenharia Mecânica

1972 - 1975

Universidade de Karlsruhe

Idiomas

Inglês

Compreende Bem, Fala Bem, Lê Bem, Escreve Bem.

Português

Compreende Bem, Fala Pouco, Lê Razoavelmente, Escreve Pouco.

Francês

Compreende Razoavelmente, Fala Pouco, Lê Razoavelmente, Escreve Razoavelmente.

Alemão

Compreende Bem, Fala Bem, Lê Bem, Escreve Bem.

Áreas de atuação

Grande área: Engenharias / Área: Engenharia de Materiais e Metalúrgica.

Grande área: Engenharias / Área: Engenharia Mecânica.

Orientou

Rafael Menezes Nunes

Análise de tensões residuais no processo de trefilação combinada do aço AISI 1048 visando minimizar distorções pós processamento; 2008; Dissertação (Mestrado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul,; Coorientador: Thomas Georg Karl Hirsch;

Adão Felipe Oliveira Skonieski

Influência da mistura gasosa nos processos de nitretação e nitrocarbonetação a plasma do aço AISI 4140; 2008; Dissertação (Mestrado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul,; Coorientador: Thomas Georg Karl Hirsch;

Tonilson de Souza Rosendo

Análise micromagnética de tensões residuais em anéis de rolamento; 2005; Dissertação (Mestrado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul,; Coorientador: Thomas Georg Karl Hirsch;

Carlos Otávio Damas Martins

Comparação entre técnicas de análise de tensões residuais em anéis para rolamentos; 2004; Dissertação (Mestrado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul,; Coorientador: Thomas Georg Karl Hirsch;

Thomas Gabriel Rosauro Clarke

Análise por difração de raios-x da interface plasma-superfície durante a nitretação a plasma; 2004; Dissertação (Mestrado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul,; Coorientador: Thomas Georg Karl Hirsch;

Fabiano Dornelles Ramos

A influência das tensões sobre a difusão de nitrogênio no processo de nitretação a plasma; 2003; Dissertação (Mestrado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul,; Coorientador: Thomas Georg Karl Hirsch;

Alexandre da Silva Rocha

Influência do Estado Superficial Prévio na Nitretação a Plasma do Aço ABNT M2; 2000; Tese (Doutorado em Engenharia de Minas, Metalúrgica e de Materiais) - Universidade Federal do Rio Grande do Sul, Conselho Nacional de Desenvolvimento Científico e Tecnológico; Coorientador: Thomas Georg Karl Hirsch;

Lilian Ferreira de Senna

Produção e caracterização de filmes duros de carbonitreto de Titânio; 1998; Tese (Doutorado em Engenharia Metalúrgica e de Materiais) - Universidade Federal do Rio de Janeiro,; Coorientador: Thomas Georg Karl Hirsch;

Produções bibliográficas

SOUZA, Tomaz Fantin de ; SOARES, C. A. T. ; ZOTTIS, J. ; NUNES, R. M. ; NUNES, R. M. ; Rocha, AS ; HIRSCH, T. G. K. . Comparison between Neutron Diffraction measurements and numerical simulation of residual stresses of a Wire-Drawing process. Materials Research (São Carlos. Impresso) , v. 16, p. 508-514, 2013.
Rocha, AS ; NUNES, R. M. ; Nunes, Rafael Menezes ; SOUZA, Tomaz Fantin de ; SOARES, C. A. T. ; Tekkaya A.E ; HIRSCH, T. G. K. . Experimental Characterization and Simulation of a Wire Drawing Process and Related Distortion Potentials. HTM Journal of Heat Treatment and Materials , v. 68, p. 135-140, 2013.
HIRSCH, T. G. K. ; NUNES, R. M. ; Alexandre da Silva Rocha . Characterization of local residual stress inhomogeneities in combined wire drawing processes of AISI 1045 steel bars. International Journal, Advanced Manufacturing Technology , p. 661-668, 2013.
Epp, J. ; HIRSCH, T. G. K. . Characterisation of the carrier of distortion potential residual stresses in the collaborative research centre distortion engineering . Materialwissenschaft und Werkstofftechnik , v. 43, p. 112-119, 2012.
Rocha, Alexandre da Silva ; Nunes, Rafael Menezes ; HIRSCH, T. G. K. . Analysis by design of experiments of distortion potentials in drawn and induction hardened wire. Materials Research (São Carlos. Impresso) , v. 15, p. 266-276, 2012.
Rocha, A. S. ; Nunes, R. M. ; Hirsch, T. . Changes in the axial residual stresses in AISI 1045 steel bars resulting from a combined drawing process chain. Proceedings of the Institution of Mechanical Engineers. Part B, Journal of Engineering Manufacture , v. 226, p. 459-465, 2012.
Nunes, Rafael Menezes ; DIAS, V. W. ; Rocha, AS ; HIRSCH, T. G. K. . Análise de Tensões Residuais em Barras de AISI 1045 Temperadas por Indução.. Industrial Heating - Brasil , v. 1, p. 63-66, 2012.
Epp, J. ; Surm, H. ; HIRSCH, T. G. K. ; F. Hoffmann . Residual stress relaxation during heating of bearing rings produced in two different manufacturing chains. Journal of Materials Processing Technology , v. 211, p. 637-643, 2011.
Epp, J. ; Surm, H. ; HIRSCH, T. G. K. ; F. Hoffmann . Interdependence of Distortion and Residual Stress Relaxation of Cold-Rolled Bearing Rings During Heating. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science , v. 42, p. 1205-1214, 2011.
Epp, J. ; HIRSCH, T. G. K. . Residual Stress State Characterization of Machined Components by X-ray Diffraction and Multiparameter Micromagnetic Methods. Experimental Mechanics , v. 50, p. 195-204, 2010.
Epp, J. ; HIRSCH, T. G. K. ; Hunkel, M. ; Wimpory, R. . Combined Neutron and X-Ray Diffraction Analysis for the Characterization of a Case Hardened Disc. Materials Science Forum (Online) , v. 652, p. 37-43, 2010.
NUNES, R. M. ; Rocha, AS ; HIRSCH, T. G. K. . Comparação entre difração de raios-X e hole-drilling para medição de tensões residuais em barras cilíndricas. Matéria (UFRJ) , v. 14, p. 965-976, 2009.
Epp, J. ; HIRSCH, T. G. K. ; de Souza Rosendo, T. . Use of X-ray diffraction and micromagnetic methods for a complete characterization of residual stress states in manufactured parts. Materialwissenschaft und Werkstofftechnik , v. 40, p. 431-437, 2009.
Campos, M. F. ; Sablik, M.J. ; Landgraf, F.J. ; HIRSCH, T. G. K. ; Machado, R. ; Magnabosco, R. ; Gutierrez, C.J. ; Bandyopadhyay, A. . Effect of rolling on the residual stresses and magnetic properties of a 0,5% Si electrical steel. Journal of Magnetism and Magnetic Materials , v. 320, p. e377-e380, 2008.
Epp, J. ; Surm, H. ; Kessler, O. ; HIRSCH, T. G. K. . In situ X-ray phase analysis and computer simulation of carbide dissolution of ball bearing steel at different austenitizing temperatures. Acta Materialia (Oxford) , v. 55, p. 5959-5967, 2007.
Epp, J. ; Surm, H. ; Kessler, O. ; HIRSCH, T. G. K. . In-Situ X-Ray Investigations and Computer Simulation during Continuous Heating of a Ball Bearing Steel. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science , v. 38, p. 2371-2378, 2007.
Recke, S. ; HIRSCH, T. G. K. . Röntgenographische In-situ-Messungen der Eigenspannungen zwischen 750 C und 900 C Optimierung der Messeinrichtung. Materialprüfung (München) , v. 49, p. 631-636, 2007.
HIRSCH, T. G. K. ; Clarke, T. ; Rocha, AS . An in-situ study of plasma nitridingâ . Surface & Coatings Technology , v. 201, p. 6380-6386, 2007.
Clarke, T. ; Alexandre da Silva Rocha ; Strohaecker, T. ; HIRSCH, T. G. K. . In situ XRD measurements during plasma nitriding of a medium carbon steel. Surface & Coatings Technology , v. 194, p. 283-289, 2005.
Martins, C. O.D. ; Strohaecker, T. ; Alexandre da Silva Rocha ; HIRSCH, T. G. K. . Application of X-ray Diffraction, Micromagnaetic and Hole Drilling Methods for Residual Stress Determination in a Ball Bearing Steel Ring. Experimental Mechanics , v. 45, p. 344-350, 2005.
L.F. Senna ; C.A. Achete ; HIRSCH, T. G. K. ; Mattos, O. . Characterisation of PVD TiCN layers by physical and electrochemical methods. Surface Engineering , v. 21, p. 144-150, 2005.
Rocha, AS ; HIRSCH, T. G. K. . Fast in situ X-ray diffraction phase and stress analysis during complete heat treatment cycles of steel. Materials Science & Engineering. A, Structural Materials: properties, microstructure and processing , v. 395, p. 195-207, 2005.
HIRSCH, T. G. K. ; Alexandre da Silva Rocha ; Dornelles, F. ; Strohaecker, T. . Residual stress-affected diffusion during plasma nitriding of tool steels. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science , v. 35, p. 3523-3530, 2004.
Machado, R. ; Kwietniekski, C. ; Fontana, W. ; Moraes, C. ; Rocha, AS ; HIRSCH, T. G. K. ; Reguly, A. . Nitrided layer embrittlement due to edge effect on duplex treated AISI M2 high-speed steel. Surface & Coatings Technology , v. 179, p. 27-32, 2004.
Alexandre da Silva Rocha ; Strohaecker, T. ; HIRSCH, T. G. K. . Effect of different surface states before plasma nitriding on properties and machining behavior of M2 high-speed steel. Surface & Coatings Technology , v. 165, p. 176-185, 2003.
Rocha, AS ; Strohaecker, T. ; HIRSCH, T. G. K. . Einfluss unterschiedlicher OberflÃ chenzustÃ nde vor dem Plasmanitrieren auf Eigenschaften und Zerspanungsverhalten des Schnellarbeitsstahls S 6-5-2. Materialwissenschaft und Werkstofftechnik , v. 34, p. 64-73, 2003.
Rocha, AS ; Strohaecker, T. ; HIRSCH, T. G. K. . Mikrostrukturelle und röntgenographische Analysen an einem plasmanitrierten Schnellarbeitsstahl. Materialwissenschaft und Werkstofftechnik , v. 32, p. 693-700, 2001.
Meyer, B.C. ; Doyen, H. ; Emanowski, D. ; Tempus, G. ; HIRSCH, T. G. K. ; P. Mayr . Dispersoid-free zones in the heat-affected zone of aluminum alloy welds. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science , v. 31, p. 1453-1459, 2000.
Alexandre da Silva Rocha ; HIRSCH, T. G. K. ; T. Strohaecker ; V. Tomala . Microstructure and residual stresses of a plasma-nitrided M2 tool steel. Surface & Coatings Technology , v. 115, p. 24-31, 1999.
V. Tomala ; HIRSCH, T. G. K. ; P. Mayr . In situ X-ray stress analysis at high temperatures in CVD steelâ . Surface Engineering , v. 15, p. 59-63, 1999.
HIRSCH, T. G. K. ; F. Hoffmann ; P. Mayr . Effect of different compound layer and base material microstructures on microstrain and domain size of nitrided steel. Surface Engineering , v. 14, p. 481-488, 1998.
F.L Freire Jr. ; L.F. Senna ; C.A. Achete ; HIRSCH, T. G. K. . Characterization of TiCN coatings deposited by magnetron sputter-ion plating process: RBS and GDOS complementary analyses. Nuclear Instruments & Methods in Physics Research. Section B, Beam Interactions with Materials and Atoms (Print) , v. 136-138, p. 788-792, 1998.
C.A. Achete ; L.F. Senna ; HIRSCH, T. G. K. ; F.L Freire Jr. . Structural, chemical, mechanical and corrosion resistance characterization of TiCN coatings prepared by magnetron sputtering. Surface & Coatings Technology , v. 94-95, p. 390-397, 1997.
F. Hoffmann ; U. Kreft ; HIRSCH, T. G. K. ; P. Mayr . In-situ Measurement of Residual Stresses during the Nitriding Process. Heat Treatment of Metals (Cessou em 2004) , v. 3, p. 57-60, 1996.
U. Kreft ; F. Hoffmann ; HIRSCH, T. G. K. ; P. Mayr . Formation of Residual Stresses in Compound Layer During Gas Nitriding Measured by In-Situ-Technique. Surface Engineering , v. 11, p. 61-65, 1995.
S. Dorn ; HIRSCH, T. G. K. ; P. Mayr . Structural alterations of local damage in ball bearings subjected to rolling contact fatigue. Materials Science & Engineering. A, Structural Materials: properties, microstructure and processing , v. 189, p. 181-189, 1994.
HIRSCH, T. G. K. ; P. Mayr . Interferenzlinienprofilanalysen an hartstoffbeschichteten Stahlproben unterschiedlicher Schichtdicke. Materialwissenschaft und Werkstofftechnik , v. 25, p. 63-70, 1994.
Vetters,H. ; HIRSCH, T. G. K. ; Stock, H.-R. ; P. Mayr . Dünne Hartstoffschichten prüfen. Metalloberfläche , v. 47, p. 294-300, 1993.
HIRSCH, T. G. K. ; P. Mayr . Zum Biegewechselverhalten von randschichtverfestigtem bainittisch-austenitischen Kugelgraphitgu , Teil I. Konstruieren und Giessen , v. 18, p. 25-32, 1993.
Vetters,H. ; HIRSCH, T. G. K. ; Stock, H.-R. ; P. Mayr . Dünne Hartstoffschichten prüfen. Materialprüfung (München) , v. 35, p. 90-97, 1993.
Weise,P. ; HIRSCH, T. G. K. ; P. Mayr . Analysis of Residual Stresses in Hard Coatings by a Mechanical Measurement System. Surface Engineering , v. 1, p. 343-350, 1993.
Weise,P. ; HIRSCH, T. G. K. ; P. Mayr . Evaluation of Residual Stresses by Mechanical and X-Ray Methods in Hard Coatings. Surface Engineering , v. 1, p. 335-342, 1993.
HIRSCH, T. G. K. ; P. Mayr . Residual stresses and residual stress distributions in TiCN- and TiN-coated steels. Surface & Coatings Technology , v. 36, p. 729-741, 1988.
NUNES, R. M. ; Rocha, AS ; HIRSCH, T. G. K. . Estudo E Caracterização De Tensões Residuais Em Barras De Aço Aisi 1045 no Processo de Têmpera por Indução. In: Congresso Anual da Associação Brasileira de Metalurgia, Materiais e Mineração, 2011, São Paulo. Anais do 66 Congresso Anual da ABM, 2011.
NUNES, R. M. ; Rocha, AS ; HIRSCH, T. G. K. . Estudo e Minimização de Empenamentos decorrentes de Tratamentos Térmicos de Alívio de Tensões e Têmpera por Indução em Hastes de Aço AISI 1045. In: Congresso Anual da Associação Brasileira de Metalurgia, Materiais e Mineração, 2011, São Paulo. Anais do 66 Congresso Anual da ABM, 2011.
Dagnese J. ; Rocha, AS ; HIRSCH, T. G. K. . Investigation of Influence of Bauschinger Effect on the Mechanical Properties of an AISI 1045 Steel. In: Congresso Anual da Associação Brasileira de Metalurgia, Materiais e Mineração, 2011, São Paulo. Anais do 66 Congresso Anual da ABM, 2011.
Rocha, AS ; NUNES, R. M. ; HIRSCH, T. G. K. . Detection of Local Inhomogeneities in Combined Wire Drawing Processes - Detailed Analysis of Residual Stress Fields. In: Congresso Anual da Associação Brasileira de Metalurgia, Materiais e Mineração, 2011, São Paulo. Anais do 66 Congresso Anual da ABM, 2011.
Rocha, AS ; NUNES, R. M. ; Fantin de Souza, T. ; HIRSCH, T. G. K. . Experimental characterization and simulation of a wire drawing process and related distortion potentials. In: Proc. 3rd Int. Conf. On Distortion Engineering IDE 2011, 2011, Bremen. Proc. 3rd Int. Conf. On Distortion Engineering IDE 2011, 2011. p. 229-233.
Epp, J. ; HIRSCH, T. G. K. . Overview of methods to characterize the carrier of distortion potential residual stresses. In: Proc. 3rd Int. Conf. On Distortion Engineering IDE 2011, 2011, Bremen. Proc. 3rd Int. Conf. On Distortion Engineering IDE 2011, 2011. p. 351-361.
Rocha, AS ; NUNES, R. M. ; Metz, M. ; HIRSCH, T. G. K. . Analysis of the distortion potential in AISI 1048 steel bars induced by a combined drawing-straightening process. In: Proc. 2nd Int. Conf. On Distortion Engineering IDE 2008, 2011, Bremen. Proc. 2nd Int. Conf. On Distortion Engineering IDE 2008, 2008. p. 13-26.
NUNES, R. M. ; Rocha, AS ; HIRSCH, T. G. K. . Análise de Tensões Residuais via Difração de Nêutrons em Barras de Aço AISI 1045 Produzidas por Trefilação Combinada. In: Congresso Anual da Associação Brasileira de Metalurgia, Materiais e Mineração, 2010, Rio de Janeiro. Anais do 65 Congresso Anual da ABM. p. 453-464.
NUNES, R. M. ; Rocha, AS ; HIRSCH, T. G. K. . Análise de Tensões Residuais Superficiais via Difração De Raios-X Durante o Processo de Trefilação Combinada de Barras de Aço AISI 1045. In: Congresso Anual da Associação Brasileira de Metalurgia, Materiais e Mineração, 2010, Rio de Janeiro. Anais do 65 Congresso Anual da ABM, 2010. p. 475-487.
Alexandre da Silva Rocha ; Nunes, R. M. ; Metz, M. ; HIRSCH, T. G. K. . Analysis of the distortion potential in AISI 1048 steel bars induced by a combined drawing-straightening process. In: 2nd International Conference on Distortion Engineering, 2008, Bremen, 2008, Bremen. 2nd International Conference on Distortion Engineering, 2008.
Epp, J. ; HIRSCH, T. G. K. ; de Souza Rosendo, T. . Use of X-ray diffraction and micromagnetic methods for a complete characterization of residual stress states in manufactured parts. In: Proc. 2nd Int. Conf. On Distortion Engineering IDE 2008, 2008, Bremen. Proc. 2nd Int. Conf. On Distortion Engineering IDE 2008, 2008. p. 17-19.
de Souza Rosendo, T. ; Rocha, AS ; Reguly, A. ; HIRSCH, T. G. K. ; Strohaecker, T. . Análise micromagnética de tensões residualis em anéis para rolamento. In: Proceedings 61st Congresso Annual da ABM, 2006, São Paulo. Proceedings 61st Congresso Annual da ABM, 2006.
HIRSCH, T. G. K. ; F. Stahl ; P. Mayr . Application of continuous casting steel 100Cr6 (SAE 52 100) for bearing balls. In: Bearing steels: Into the 21st Century, 1998. Bearing steels: Into the 21st Century, ASTM STP 1327, 1998.
HIRSCH, T. G. K. ; J. Böhmer ; E. Streit . Rolling Contact Fatigue Behavior of Heat Resistant Bearing Steels at High Operational Temperatures. In: Bearing steels: Into the 21st Century, 1998. Bearing steels: Into the 21st Century, ASTM STP 1327, 1998.
PEREIRA, D. ; Clarke, T. ; MENEZES, R. ; Hirsch, T. . Effect of microstructure on electrical conductivity of Inconel 718 alloys. Materials Science and Technology , 2014.
LEMOS, GUILHERME VIEIRA BRAGA ; HIRSCH, THOMAS KARL ; Rocha, Alexandre da Silva ; Nunes, Rafael Menezes . Residual stress analysis of drive shafts after induction hardening. Materials Research (São Carlos. Impresso) , 2014.
HIRSCH, T. G. K. ; Alexandre da Silva Rocha ; NUNES, R. M. . Distortion Analysis in the Manufacturing of Cold-Drawn and Induction-Hardened Components. Metallurgical and Materials Transactions. A, Physical Metallurgy and Materials Science , 2013.

Projetos de desenvolvimento

2009 - 2011

Investigation and improvement of a manufacturing process chain from cold drawing processes to induction hardening., Descrição: Manufacturing processes in general consist of materials solidification processes, metal forming processes and more than one straightening process, machining and heat treatment processes. Machining and final straightening is then necessary to guarantee the required shape and dimensions of machine parts. Few attempts are made to optimize products over more than one production step and difficulties arise from the fact that single production steps in a world market take place in different countries around the world. Cold forming processes are energy efficient and clean and are used in production processes with an increasing number. Cold forming on the other side significantly changes materials properties and cold formed automotive parts need a surface heat treatment or have to be through hardened completely to fulfill strength requirements. An improvement of properties during one production step consequently can result in problems in the next, one of the following or finally in the last manufacturing step. Components manufactured in this way show a broad band of distortions, which have to be removed by additional expensive machining operations. The transmission of distortion potentials from one manufacturing step to the other in a cold drawing process with additional induction hardening will be analyzed experimentally and partially modeled. A DoE-plan (design of experiments) of main affecting parameters will be used to identify effects and correlations. A reduction of one or more manufacturing operation as e.g. additional straightening and/or machining will be expected.. , Situação: Em andamento; Natureza: Desenvolvimento. , Integrantes: Thomas Georg Karl Hirsch - Integrante / A. da Silva Rocha - Coordenador.

Histórico profissional

Endereço profissional

Stiftung Institut fuer Werkstofftechnik. , Bad Gasteiner Strasse 3, 28359 - Bremen, - Alemanha, URL da Homepage:

Experiência profissional

2009 - 2011

Universidade Federal do Rio Grande do Sul

Vínculo: Colaborador, Enquadramento Funcional: Professor, Carga horária: 2