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The effect of microstructure on the decrease of the apparent Young's Modulus in DP 780 steel

Weiss, Matthias, Cai, Minghui, Hodgson, Peter and Kupke, Andreas 2013, The effect of microstructure on the decrease of the apparent Young's Modulus in DP 780 steel, in Proceedings of the 2013 International Symposium on New Developments in Advanced High Strength Sheet Steels, AIST, [Vail, Colo.], pp. 6-7.

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Title The effect of microstructure on the decrease of the apparent Young's Modulus in DP 780 steel
Author(s) Weiss, Matthias
Cai, Minghui
Hodgson, Peter
Kupke, Andreas
Conference name New Developments in Advanced High Strength Sheet Steels. International Symposium ( 2013 : Vail, Colorado)
Conference location Vail, Colorado
Conference dates 23-27 Jun. 2013
Title of proceedings Proceedings of the 2013 International Symposium on New Developments in Advanced High Strength Sheet Steels
Editor(s) [Unknown]
Publication date 2013
Conference series New Developments in Advanced High Strength Sheet Steels International Symposium
Start page 6
End page 7
Total pages 2
Publisher AIST
Place of publication [Vail, Colo.]
Summary Currently, there is a significant effort into developing novel multiphase microstructures to further improve the strength/ductility combination of advanced high-strength steels. To achieve this, the effect of the microstructure on sheet formability needs to be further understood. In this study, the effect of the microstructure on the variation of the elastic modulus in loading and unloading of DP 780 steel has been investigated. Five microstructures with varying volume fractions of ferrite and martensite were generated using different heat treatment cycles. Tension tests were performed to different strain values and the Young’s Modulus during loading and unloading was determined. The test results show that the reduction in unloading modulus with prestrain depends on the volume fraction and hardness of the martensitic phase.
Language eng
Field of Research 109999 Technology not elsewhere classified
Socio Economic Objective 970110 Expanding Knowledge in Technology
HERDC Research category E3 Extract of paper
Copyright notice ©2013, AIST
Persistent URL http://hdl.handle.net/10536/DRO/DU:30055483

Document type: Conference Paper
Collection: Institute for Frontier Materials
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Created: Thu, 29 Aug 2013, 11:58:33 EST

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