The Effect of Short Time Aging at High Temperature on Microstructure of ZG12Cr9Mo1Co1NiVNbNB Ferritic Heat Resistant Steel

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The Effect of Short Time Aging at High Temperature on Microstructure of ZG12Cr9Mo1Co1NiVNbNB Ferritic Heat Resistant Steel

更新时间：2023-11-14

- The Effect of Short Time Aging at High Temperature on Microstructure of ZG12Cr9Mo1Co1NiVNbNB Ferritic Heat Resistant Steel
- Advanced Engineering Sciences Vol. 47, Issue Z1, Pages: 158-163(2015)
- 作者机构：
  
  四川大学
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2015，
  
  Published Online：13 November 2014，
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杨雪.700℃高温短时时效对ZG12Cr9Mo1Co1NiVNbNB铁素体耐热钢显微组织的影响[J].工程科学与技术,2015,47(Z1):158-163.

yang xue. The Effect of Short Time Aging at High Temperature on Microstructure of ZG12Cr9Mo1Co1NiVNbNB Ferritic Heat Resistant Steel. [J]. Advanced Engineering Sciences 47(Z1):158-163(2015)
杨雪.700℃高温短时时效对ZG12Cr9Mo1Co1NiVNbNB铁素体耐热钢显微组织的影响[J].工程科学与技术,2015,47(Z1):158-163. DOI：

yang xue. The Effect of Short Time Aging at High Temperature on Microstructure of ZG12Cr9Mo1Co1NiVNbNB Ferritic Heat Resistant Steel. [J]. Advanced Engineering Sciences 47(Z1):158-163(2015) DOI：

摘要

中文摘要: 为了了解ZG12Cr9Mo1Co1NiVNbNB铁素体耐热钢在高温使用过程中的组织演化规律，本文采用透射电子显微镜和能谱仪等先进手段研究了高温时效对该钢组织的影响。研究结果表明：在700℃时效100h后，该钢的基体组织主要由马氏体板条，大量位错和析出相组成；析出相主要是Fe(Cr

Mo)23C6、VC、Fe2Mo型Laves相；大尺寸的Fe(Cr

Mo)23C6型碳化物主要分布于马氏体板条界和原奥氏体晶界，细小的VC型碳氮化物主要分布于基体

且析出相的数量增加；在高温时效过程中，Fe(Cr

Mo)23C6的尺寸增大。VC颗粒尺寸变化不大，热稳定性比Fe(Cr

Mo)23C6好。

Abstract

Abstract:In order to know the microstructure evolution regularity of ZG12Cr9Mo1Co1NiVNbNB ferritic heat resistant steel used in the high temperature urgently

the influence of microstructure of this steel caused by aging high temperature has been studied using transmission electron microscope and energy spectrometer in this paper. The results showed that the microstructure contained martensite lath

high dislocation density and precipitates after aging at 700℃ for 100h. And the precipitates were Fe(Cr

Mo)23C6

and Laves phase（Fe2Mo）. The larger Fe(Cr

Mo)23C6 carbides mainly distributed in the martensite and the original austenite grain boundary. VC mainly distributed in the matrix. In addition

the number density of them was increased. The size of the Fe(Cr

Mo)23C6 carbides was also increased during aging. And the thermal stability of VC was better than Fe(Cr

Mo)23C6 carbides.

关键词

ZG12Cr9Mo1Co1NiVNbNB铁素体耐热钢组织析出相时效

Keywords

ZG12Cr9Mo1Co1NiVNbNBferritic heat resistant steelmicrostructureprecipitatesaging

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