Mechanical properties of DS NiAl/Cr(Mo) alloys with low addition of Hf for high-temperature applications | |
Du, XH; Guo, JT | |
通讯作者 | Du, XH(xinghaodu@yahoo.com) |
2005-09-01 | |
发表期刊 | JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
![]() |
ISSN | 1005-0302 |
卷号 | 21期号:5页码:635-640 |
摘要 | A multiphase NiAl-28Cr-5.85lVlo-0.15Hf alloy, which was directionally solidified (DS) in an Al2O3-SiO2 mold by standard Bridgman method and then underwent prolonged solution and aging treatment was prepared. The microstructure, tensile properties as well as tensile creep of the heat-treated alloy at different temperatures were studied. The alloy was composed of NiAl, Cr(Mo) and Hf-rich phase and small amount of fine Heusler phase (Ni2AlHf). Although the present alloy exhibited high tensile strength at low temperature, it was weaker than that of system with high content Hf but still stronger than that of many NiAl-based alloys at high temperatures. The fracture toughness is lower than that of DS NiAl-28Cr-6Mo alloy. Nevertheless, advantageous effects on the mechanical properties, i.e. the decrease in brittle-to-ductile transition temperature (BDTT) were obtained for the low content of Hf. The obtained creep curves exhibit conventional shape: a short primary creep and long accelerated creep stages. The rupture properties of the heat-treated alloy follow the Monkman-Grant relationship, which exhibits similar creep behavior to that of NiAl/Cr(Mo) system with high Hf content. |
关键词 | NiAl / Cr(Mo, Hf) alloys microstructure mechanical properties tensile deformation creep behavior |
收录类别 | SCI |
语种 | 英语 |
WOS研究方向 | Materials Science ; Metallurgy & Metallurgical Engineering |
WOS类目 | Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering |
WOS记录号 | WOS:000232316600006 |
出版者 | JOURNAL MATER SCI TECHNOL |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://ir.imr.ac.cn/handle/321006/82672 |
通讯作者 | Du, XH |
作者单位 | 1.Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China 2.Shenyang Inst Aeronaut Engn, Dept Mat Engn, Shenyang 110034, Peoples R China |
推荐引用方式 GB/T 7714 | Du, XH,Guo, JT. Mechanical properties of DS NiAl/Cr(Mo) alloys with low addition of Hf for high-temperature applications[J]. JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,2005,21(5):635-640. |
APA | Du, XH,&Guo, JT.(2005).Mechanical properties of DS NiAl/Cr(Mo) alloys with low addition of Hf for high-temperature applications.JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY,21(5),635-640. |
MLA | Du, XH,et al."Mechanical properties of DS NiAl/Cr(Mo) alloys with low addition of Hf for high-temperature applications".JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY 21.5(2005):635-640. |
条目包含的文件 | 条目无相关文件。 |
个性服务 |
推荐该条目 |
保存到收藏夹 |
查看访问统计 |
导出为Endnote文件 |
谷歌学术 |
谷歌学术中相似的文章 |
[Du, XH]的文章 |
[Guo, JT]的文章 |
百度学术 |
百度学术中相似的文章 |
[Du, XH]的文章 |
[Guo, JT]的文章 |
必应学术 |
必应学术中相似的文章 |
[Du, XH]的文章 |
[Guo, JT]的文章 |
相关权益政策 |
暂无数据 |
收藏/分享 |
除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。
修改评论