NDLI: Multi-stage Modeling of Lüders Elongation and Work-Hardening Behaviors of Ferrite Steels Under Tension

Content Provider	Springer Nature Link
Author	Zhang, Zhongyang Liao, Yiliang
Copyright Year	2016
Abstract	For structural and engineering steels, accurate modeling of stress–strain relation of ferrite phase is of particular importance, since the modeling results could benefit new material system design and process-microstructure-property analysis. Several modeling efforts have been made to achieve this target. However, few efforts have been put on the Lüders elongation behavior of ferrite. As a result, the modeling results from proposed models do not match well with experimental data, particularly at a relatively low-strain range. Furthermore, without the consideration of yield point elongation due to the formation of Lüders bands, additional calibration parameters are required to capture the stress level of stress–strain curves. In this work, a multi-stage model is developed to predict the stress–strain relation of ferrite phase steel under room temperature tension. This model is capable of capturing the grain size effect on both Lüders elongation and work-hardening behaviors of ferrite. The modeling results are extensively validated by experimental data.
Starting Page	1621
Ending Page	1628
Page Count	8
File Format	PDF
ISSN	10735623
Journal	Metallurgical and Materials Transactions A
Volume Number	47
Issue Number	4
e-ISSN	15431940
Language	English
Publisher	Springer US
Publisher Date	2016-01-20
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Mechanics of Materials Metals and Alloys Condensed Matter Physics

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