镍基单晶高温合金短时时效过程中取向变化的原位研究

被引：8

作者：

李晴 ^{[1
]}

龙海波 ^{[1
]}

向思思 ^{[1
]}

王晓冬 ^{[1
,2
]}

韦华 ^{[3
]}

张洪宇 ^{[3
]}

毛圣成 ^{[1
]}

张泽 ^{[1
,4
]}

韩晓东 ^{[1
]}

机构：

[1] 北京工业大学固体微结构与性能研究所北京市重点实验室

[2] 中国人民武装警察部队学院基础部

[3] 中国科学院金属研究所金属腐蚀与防护国家重点实验室

[4] 浙江大学电子显微镜中心材料科学与工程学院硅材料国家重点实验室

来源：

电子显微学报 | 2016年 / 35卷 / 02期

关键词：

镍基单晶高温合金; 取向变化; 原位TEM; 原位XRD;

D O I：

暂无

中图分类号：

TG132.3 [特种热性质合金];

学科分类号：

080502 ;

摘要：

利用TEM和XRD原位研究了一种镍基单晶高温合金在时效过程中的取向变化。研究发现固溶-时效热处理后的初始样品内部不同γ'相之间存在4°的小角度晶界。对材料在950℃下进行10 min短时时效处理,原位TEM和XRD结果表明γ'相的取向偏离初始取向5°,且该取向变化在降温之后也不会完全恢复;该短时升、降温过程使γ'相的取向集中度增加。

引用

页码：97 / 102

页数：6

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