东北大学学报:自然科学版 ›› 2016, Vol. 37 ›› Issue (2): 184-188.DOI: 10.12068/j.issn.1005-3026.2016.02.008

• 材料与冶金 • 上一篇    下一篇

Cr含量对高锰奥氏体TWIP钢高温氧化行为的影响

袁晓云1, 赵阳2, 陈礼清1   

  1. (1. 东北大学 轧制技术及连轧自动化国家重点实验室, 辽宁 沈阳110819; 2. 东北大学 材料科学与工程学院, 辽宁 沈阳110819)
  • 收稿日期:2014-11-24 修回日期:2014-11-24 出版日期:2016-02-15 发布日期:2016-02-18
  • 通讯作者: 袁晓云
  • 作者简介:袁晓云(1987-), 女, 辽宁大连人, 东北大学博士研究生; 陈礼清(1965 ), 男, 安徽安庆人, 东北大学教授,博士生导师.
  • 基金资助:
    国家高技术研究发展计划项目(2012AA03A508).

Effect of Cr Content on High-Temperature Oxidation Behavior of High-Manganese Austenitic TWIP Steel

YUAN Xiao-yun1, ZHAO Yang2,CHEN Li-qing1   

  1. 1.State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China; 2.School of Materials Science & Engineering, Northeastern University, Shenyang 110819, China.
  • Received:2014-11-24 Revised:2014-11-24 Online:2016-02-15 Published:2016-02-18
  • Contact: CHEN Li-qing
  • About author:-
  • Supported by:
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摘要: 通过恒温氧化增重实验和扫描电镜观察及XRD分析,研究了Cr含量对高锰奥氏体孪晶诱发塑性(TWIP)钢在700 ℃氧化8h的高温氧化动力学过程及氧化产物的影响.结果表明:随着Cr含量的提高,高锰奥氏体TWIP钢的抗氧化能力增强;当Cr的质量分数为1.13 %时,经过在700 ℃下8h的高温氧化,样品单位面积的氧化增重为30μg/mm2;而当Cr的质量分数增加到3.95 %时,单位面积的氧化增重降低至3μg/mm2.随着Cr含量的增加,高锰奥氏体TWIP钢氧化层的致密度提高,氧化产物的构成也具有明显的差异.

关键词: 奥氏体钢, TWIP钢, Cr含量, 高温氧化, 氧化产物

Abstract: Through oxide weight gain experiment,SEM and XRD analysis, the effects of Cr content were studied on the high-temperature oxidation behavior, the microstructures and phase compositions of oxidation scale of a high-manganese austenitic twinning-induced plasticity (TWIP) steel oxidized at 700℃ for 8h. The results show that with increasing the Cr content, the anti-oxidation ability of this high-manganese austenitic TWIP steel increases. When the Cr content is 1.13wt%, the mass gain of the steel oxidized at 700℃ for 8h is about 30μg/mm2, while the Cr content increases to 3.95wt%, the mass gain decreases to 3μg/mm2. Moreover, with increasing the Cr content, the compactness of oxide scale increases, and there are significant differences in the composition of oxide scales.

Key words: austenitic steel, TWIP (twinning-induced plasticity) steel, Cr content, high-temperature oxidation, oxidation product

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