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[1]史振学,刘世忠,赵金乾.Mo含量对第四代单晶高温合金组织及稳定性的影响[J].有色金属科学与工程,2019,(01):67-71.[doi:10.13264/j.cnki.ysjskx.2019.01.011]
 SHI Zhenxue,LIU Shizhong,ZHAO Jinqian.Influence of Mo content on microstructure and stability of the fourth-generation single crystal superalloys[J].,2019,(01):67-71.[doi:10.13264/j.cnki.ysjskx.2019.01.011]
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Mo含量对第四代单晶高温合金组织及稳定性的影响(/HTML)
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《有色金属科学与工程》[ISSN:1674-9669/CN:36-1311/TF]

卷:
期数:
2019年01期
页码:
67-71
栏目:
出版日期:
2019-01-20

文章信息/Info

Title:
Influence of Mo content on microstructure and stability of the fourth-generation single crystal superalloys
作者:
史振学 刘世忠 赵金乾
(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):
SHI Zhenxue LIU Shizhong ZHAO Jinqian
(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 第四代Mo含量组织
分类号:
TG132.32
DOI:
10.13264/j.cnki.ysjskx.2019.01.011
文献标志码:
A
摘要:
为优化第四代单晶高温合金的Mo含量,在真空定向凝固炉中采用选晶法制备1 % Mo和3 % Mo的2种单晶高温合金, 采用JMatPro软件计算了不同Mo含量合金相图,通过扫描电镜和能谱仪研究Mo含量对合金凝固特征,铸态组织,热处理组织和1 100 ℃/1 000 h长期时效组织的影响. 结果表明,随着Mo含量增加,固液相线下移,糊状区变宽,γ相和TCP相含量增加;铸态合金中共晶含量减少,γ′相尺寸减小,其均匀化和立方化程度稍有增加;此外,热处理组织中γ′相立方化程度增加,长期时效组织中TCP相析出量增加,合金的组织稳定性下降.

参考文献/References:


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备注/Memo

备注/Memo:
收稿日期:2018-10-15
基金项目:国防基金资助项目(9140A18040115HK51248)
通信作者:史振学(1975- ),男,博士,高级工程师,主要从事单晶高温合金研究, E-mail:shizhenxue@126.com.
更新日期/Last Update: 2019-02-20