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Effects of consolidation process on the microstructure and mechanicalproperties of ODS ferritic alloy

  • Tong Liu*
  • , Hailong Shen
  • , Tongwen Zhang
  • , Mu Zhu
  • , Chenggong Qin
  • *此作品的通讯作者

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

The oxide-dispersion-strengthened (ODS) ferritic alloy powders (Fe-14Cr-3Al-2W-0.1Ti-0.35Y2O3) were prepared by mechanical alloying (MA) at a rotation speed of 720 rpm for 24h. All the elements were mixed homogenously in the powder, and Cr and Al dissolved in α-Fe afterMA. The bulk samples were produced by spark plasma sintering (SPS) at 950°C and 50 MPa andby hot isostatic pressing (HIP) at 1150°C and 130 MPa, respectively. The SPS sample showed atensile strength of 730 MPa and a poor ductility due to the existence of pores in microsize. The HIPsample had a high tensile strength of 980 MPa, yield strength of 710 MPa and elongation of 10.3%.The excellent mechanical properties of the HIP sample was due to the small grain size of the matrixof about 400 nm and the fine oxide particles of 5-40 nm.

源语言英语
主期刊名High Performance Structure Materials
编辑Yafang Han, Junpin Lin, Chengbo Xiao, Xiaoqin Zeng
出版商Trans Tech Publications Ltd
507-512
页数6
ISBN(印刷版)9783037856086
DOI
出版状态已出版 - 2013
活动Chinese Materials Congress 2012, CMC 2012 - Taiyuan, 中国
期限: 13 7月 201218 7月 2012

出版系列

姓名Materials Science Forum
747-748
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Congress 2012, CMC 2012
国家/地区中国
Taiyuan
时期13/07/1218/07/12

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