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Interaction between Nb-silicide based alloys and Y2O3 crucible

  • Commercial Aircraft Corporation of China, Ltd.

科研成果: 书/报告/会议事项章节会议稿件同行评审

摘要

Y2O3 crucibles have been prepared for as-cast Nb-22Ti-16Si-2Al-2Cr-2Hf and Nb-22Ti-16Si-2Al-2Cr alloys at 1950 °C. The microstructures, metal-crucible interfaces and contaminations were evaluated. Experimental results demonstrated that a mild interface reaction occurred between the Y2O3 crucibles and Hf, resulting in some inclusions dispersed in the metallic matrix. However, without Hf addition, no apparent reaction layers or inclusions were found. Both alloys were slightly contaminated with oxygen as the result of slow thermal dissociation of Y2O3, and its extent depended on Hf contents and holding times.

源语言英语
主期刊名High Performance Structural Material
编辑Yafang Han, Qiang Zhang, Bin Jiang, Bin Jiang
出版商Trans Tech Publications Ltd
231-236
页数6
ISBN(电子版)9783038353959
DOI
出版状态已出版 - 2015
活动Chinese Materials Congress, CMC 2014 - Chengdu, 中国
期限: 4 7月 20147 7月 2014

出版系列

姓名Materials Science Forum
816
ISSN(印刷版)0255-5476
ISSN(电子版)1662-9752

会议

会议Chinese Materials Congress, CMC 2014
国家/地区中国
Chengdu
时期4/07/147/07/14

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