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[1]刘世忠,史振学,熊继春,等.一种单晶高温合金的组织和持久性能[J].有色金属科学与工程,2017,(01):118-121,144.[doi:10.13264/j.cnki.ysjskx.2017.01.020]
 LIU Shizhong,SHI Zhenxue,XIONG Jichun,et al.Microstructure and stress rupture properties of a single crystal superalloy[J].,2017,(01):118-121,144.[doi:10.13264/j.cnki.ysjskx.2017.01.020]
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一种单晶高温合金的组织和持久性能(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2017年01期
页码:
118-121,144
栏目:
出版日期:
2017-01-30

文章信息/Info

Title:
Microstructure and stress rupture properties of a single crystal superalloy
作者:
刘世忠史振学熊继春李嘉荣
北京航空材料研究院先进高温结构材料重点实验室, 北京 100095
Author(s):
LIU Shizhong SHI Zhenxue XIONG Jichun LI Jiarong
Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China
关键词:
单晶高温合金 γ′相持久性能断裂机制
分类号:
TG132.3
DOI:
10.13264/j.cnki.ysjskx.2017.01.020
文献标志码:
A
摘要:
研究了一种第二代单晶高温合金的显微组织和不同条件下的持久性能.研究结果表明合金铸态组织由γ相、γ′相和共晶相组成.完全热处理后,无共晶和初熔,γ′相立方化较好.合金不同条件下持久性能良好. 在760 ℃/800 MPa条件下持久断裂为类解理断裂,而合金980 ℃/250 MPa、1 100 ℃/140 MPa的高温持久断裂显示出韧窝断裂特征. 持久断裂组织分析表明,在760 ℃/800 MPa条件下,γ′相仍保持立方状. 在980 ℃/250 MPa条件下,γ′相发生筏排化.在1 100 ℃/140 MPa条件下,γ′相筏排化更严重.

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备注/Memo

备注/Memo:
收稿日期:2016-08-08基金项目:国防基金(9140A18040115HK51248)通信作者:史振学(1975- ),男,博士,高级工程师,主要从事单晶高温含金等方面的研究,E-mail: shizhenxue@126.com.
更新日期/Last Update: 2017-01-20