首页|Finite element modelling and experimental testing of thermo-mechanical behaviour and failure of titanium superplastic forming dies

Finite element modelling and experimental testing of thermo-mechanical behaviour and failure of titanium superplastic forming dies

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  • Trans Tech Publications Ltd
This paper describes high temperature cyclic and creep relaxation testing and modelling of a high nickel-chromium material (XN40F) for application to life prediction of superplastic forming (SPF) tools. An experimental test programme to (ⅰ) characterise the high temperature cyclic elastic-plastic-creep behaviour of the material over a range of temperatures between 20℃ and 900℃, including cyclic controlled strain-range tests at different strain-rates and creep relaxation tests, and (ⅱ) identify the material constants relevant to thermo-mechanical fatigue (TMF) life prediction, is described. The objective of the material testing is the development of high temperature material and failure models for cyclic analyses and life prediction of SPF and diffusion bonding (DB) dies for titanium aerospace components.

thermo-mechanical fatiguesuperplastic formingXN40Fdiesdiffusion bondingostergren modelzamrik modeltwo-layer visco-plasticity model

Sean B Leen、Aditya A Deshpande、Thomas H Hyde

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Department of Mechanical and Biomedical Engineering, College of Engineering and Informatics, National University of Ireland, Galway, Ireland

Department of Mechanical, Materials & Manufacturing Engineering, Faculty of Engineering, University of Nottingham, NG7 2RD, UK

2010

10.4028/www.scientific.net/KEM.433.247

Key engineering materials

Key engineering materials

ISSN：1013-9826
年,卷(期)：2010.433
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