Effect of baking process on microstructures and mechanical properties of low silicon TRIP steel sheet with niobium

Tang, Zheng-you, Ding, Hua, Ding, Hao, Cai, Ming-hui and Du, Lin-xiu 2010, Effect of baking process on microstructures and mechanical properties of low silicon TRIP steel sheet with niobium, Journal of iron and steel research international, vol. 17, no. 7, pp. 68-74.

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Title Effect of baking process on microstructures and mechanical properties of low silicon TRIP steel sheet with niobium
Author(s) Tang, Zheng-you
Ding, Hua
Ding, Hao
Cai, Ming-hui
Du, Lin-xiu
Journal name Journal of iron and steel research international
Volume number 17
Issue number 7
Start page 68
End page 74
Total pages 7
Publisher Gangtie Yanjiu Xuebao
Place of publication Beijing, China
Publication date 2010-07
ISSN 1006-706X
Keyword(s) bake-hardening
baking process
mechanical property
microstructure
TRIP steel sheet
Summary After 2% predeformation, the baking treatment with different schedule was carried out for low silicon TRIP steel sheet with niobium. The effects of baking temperature and time on microstructures and mechanical properties were investigated. The results showed that with increasing the baking temperature and time, the volume fraction of retained austenite decreases, and the volume fraction of tempered martensite increases; as baking temperature ranges from 80°C to 170°C, the bake-hardening (BH) value increases obviously, while from 170°C to 230°C, the variation of BH value is very slight; as baking time ranges from 2 min to 20 min, the BH value increases significantly, while the BH value decreases when baking time exceeds 20 min. So that when the baking temperature is 170°C and the baking time is 20 min, the low silicon TRIP steel sheet exhibits good bake-hardening behavior, and the highest BH value is above 70 MPa.
Language eng
Field of Research 099999 Engineering not elsewhere classified
Socio Economic Objective 970109 Expanding Knowledge in Engineering
HERDC Research category C1.1 Refereed article in a scholarly journal
Copyright notice ©2010, Central Iron and Steel Research Institute
Persistent URL http://hdl.handle.net/10536/DRO/DU:30048023

Document type: Journal Article
Collection: Institute for Frontier Materials
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