Advanced   Register
IMR OpenIR  > 中国科学院金属研究所  > 期刊论文

题名: On the 650 degrees C thermostability of 9-12Cr heat resistant steels containing different precipitates
作者: Wang, Hai;  Yan, Wei;  van Zwaag, Sybrand;  Shi, Quanqiang;  Wang, Wei;  Yang, Ke;  Shan, Yiyin
发表日期: 2017-8-1
摘要: The thermal stability of the microstructure, in particular that of the precipitates, has been known to be a critical factor for the creep strength of 9-12Cr martensitic heat-resistant steels. In the present study, four martensitic heat-resistant steels were designed to have different precipitate types and morphologies. Steel NS1 (nitride strengthened, NS) has a low density of fine nitrides and Steel NS2 is strengthened by a high density of fine nitrides. Steel CNS (carbide and nitride strengthened, CNS) contains large size carbides and fine carbonitrides and Steel CS (carbide strengthened, CS) mainly possesses large size carbides. Both aging and creep tests at 650 degrees C were employed to evaluate the stability of the microstructure and properties of the steels during high-temperature exposure as a function of the precipitate morphology. It was found that Steel NS1 and Steel NS2 displayed a good creep performance, but they already recrystallized after a relatively short-term aging treatment. On the other hand, Steel CNS and Steel CS gave poor creep strength, but they could still maintain the tempered martensitic microstructure during long-term aging. The relation between microstructural stability and precipitate morphology/density was linked to the dislocation-precipitate interaction. (C) 2017 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.
刊名: PERGAMON-ELSEVIER SCIENCE LTD
Appears in Collections:中国科学院金属研究所_期刊论文

Files in This Item:

There are no files associated with this item.




Recommended Citation:
Wang, Hai,Yan, Wei,van Zwaag, Sybrand,et al. On The 650 Degrees C Thermostability Of 9-12cr Heat Resistant Steels Containing Different Precipitates[J]. Pergamon-elsevier Science Ltd,2017,134:143-154.

SCI Citaion Data:
Service
 Recommend this item
 Sava as my favorate item
 Show this item's statistics
 Export Endnote File
Google Scholar
 Similar articles in Google Scholar
 [Wang, Hai]'s Articles
 [Yan, Wei]'s Articles
 [van Zwaag, Sybrand]'s Articles
CSDL cross search
 Similar articles in CSDL Cross Search
 [Wang, Hai]‘s Articles
 [Yan, Wei]‘s Articles
 [van Zwaag, Sybrand]‘s Articles
Scirus search
 Similar articles in Scirus
Related Copyright Policies
Null
Social Bookmarking
  Add to CiteULike  Add to Connotea  Add to Del.icio.us  Add to Digg  Add to Reddit 
所有评论 (0)
暂无评论
 
评注功能仅针对注册用户开放,请您登录
您对该条目有什么异议,请填写以下表单,管理员会尽快联系您。
内 容:
Email:  *
单位:
验证码:   刷新
您在IR的使用过程中有什么好的想法或者建议可以反馈给我们。
标 题:
 *
内 容:
Email:  *
验证码:   刷新

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.

 

 

Valid XHTML 1.0!
Copyright © 2007-2018  中国科学院金属研究所  -Feedback
Powered by CSpace