Grain Growth in Nb-Alloyed Stainless Steel of AISI 347 during Heating-Reference-Cited by-同舟云学术

Grain Growth in Nb-Alloyed Stainless Steel of AISI 347 during Heating

Published:2013-03 Issue: Volume:753 Page:345-348
ISSN:1662-9752
Container-title:Materials Science Forum
language:
Short-container-title:MSF

Author:

Luo Hai Wen¹,Dong Han²,Chen Ling Feng³

Affiliation:

1. Central Iron and Steel Research Institute

2. Central Iron and Steel Research Institute (CISRI)

3. Hebei Shougang Qian’An Iron and Steel Co. Ltd

Abstract

Grain growth kinetics in an AISI 347 stainless steel with Nb content up to 0.7%wt was studied during the isothermal holding in the temperature range of 1100-1270°C for various periods. Abnormal grain growth was observed even in the presence of a large amount of precipitates. The kinetics of normal grain growth was tracked by metallographic measurements and fitted by the classical modeling, which led to two important parameters of activation energy Q and growth exponent n derived. Both of them are larger than the usual values for grain growth in the Nb-microalloyed steels due to the much larger content of Nb in the present steel.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science

Link

https://www.scientific.net/MSF.753.345.pdf

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