DD6单晶叶片的γ'相演化

TG132.3; 采用扫描电子显微镜(SEM)等手段研究DD6单晶涡轮叶片典型截面的γ'相演化规律.结果表明:与铸态组织相比,热处理态叶片各典型截面枝晶间区域的γ'相尺寸显著细化,枝晶间和枝晶干区域的γ'相尺寸趋于一致,分散度趋向减小,γ'相立方化程度提高;叶片各截面枝晶干和枝晶间区域的铸态和热处理态γ'相的尺寸均遵循正态分布规律;热处理态叶片叶身截面γ'相尺寸小于榫头,叶身截面中部位置γ'相尺寸大于前缘、尾缘γ'相尺寸....

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Published in航空材料学报 Vol. 40; no. 6; pp. 8 - 15
Main Authors 薛燕鹏, 杨亮, 喻健, 刘世忠, 李嘉荣
Format Journal Article
LanguageChinese
Published 中国航发北京航空材料研究院,北京 100095 01.12.2020
先进高温结构材料重点实验室 北京 100095
Subjects
单晶涡轮叶片
镍基高温合金
γ'相
DD6
Online AccessGet full text
ISSN1005-5053
DOI10.11868/j.issn.1005-5053.2020.000023

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Abstract TG132.3; 采用扫描电子显微镜(SEM)等手段研究DD6单晶涡轮叶片典型截面的γ'相演化规律.结果表明:与铸态组织相比,热处理态叶片各典型截面枝晶间区域的γ'相尺寸显著细化,枝晶间和枝晶干区域的γ'相尺寸趋于一致,分散度趋向减小,γ'相立方化程度提高;叶片各截面枝晶干和枝晶间区域的铸态和热处理态γ'相的尺寸均遵循正态分布规律;热处理态叶片叶身截面γ'相尺寸小于榫头,叶身截面中部位置γ'相尺寸大于前缘、尾缘γ'相尺寸.
AbstractList TG132.3; 采用扫描电子显微镜(SEM)等手段研究DD6单晶涡轮叶片典型截面的γ'相演化规律.结果表明:与铸态组织相比,热处理态叶片各典型截面枝晶间区域的γ'相尺寸显著细化,枝晶间和枝晶干区域的γ'相尺寸趋于一致,分散度趋向减小,γ'相立方化程度提高;叶片各截面枝晶干和枝晶间区域的铸态和热处理态γ'相的尺寸均遵循正态分布规律;热处理态叶片叶身截面γ'相尺寸小于榫头,叶身截面中部位置γ'相尺寸大于前缘、尾缘γ'相尺寸.
Author 喻健
杨亮
刘世忠
薛燕鹏
李嘉荣
AuthorAffiliation 中国航发北京航空材料研究院,北京 100095;先进高温结构材料重点实验室 北京 100095
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YU Jian
LIU Shizhong
XUE Yanpeng
YANG Liang
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镍基高温合金
γ'相
DD6
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先进高温结构材料重点实验室 北京 100095
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