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Issue:
Investigation of microstructure of GH4169 alloy surface layer after shot peening
Author(s):
SONG Ying-gang
,
GAO Yu-kui
,
LU Feng
,
ZHAO Zhen-ye
Pages:
94
-
97
Year:
2010
Issue:
9
Journal:
Heat Treatment of Metals
Keyword:
GH4169 合金
;
喷丸强化
;
组织结构
;
EBSD
;
Abstract:
采用X射线衍射方法、透射电子显微术和背散射电子衍射(EBSD)技术研究了GH4169合金喷丸强化后表面层组织结构的变化规律.结果表明,喷丸强化后,在GH4169合金试样表面形成约1.2 mm厚的弹塑性变形层;表面粗糙度Ra为1.4274 μm;晶粒内部的变形是位错和孪晶共同作用的结果.
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