Rafting in monocrystalline nickel-base superalloys induced by shot peening

被引：12
作者：
Biermann, H
Tetzlaff, U
von Grossmann, B
Mughrabi, H
Schulze, V
机构：
[1] Univ Erlangen Nurnberg, Inst Werkstoffwissensch, Lehrstuhl I, D-91058 Erlangen, Germany
[2] Univ Karlsruhe, Inst Werkstoffkunde 1, D-76128 Karlsruhe, Germany
来源：
SCRIPTA MATERIALIA | 2000年 / 43卷 / 09期
关键词：
microstructure; nickel-base superalloy; recrystallization; X-ray diffraction; hardness testing;
D O I：
10.1016/S1359-6462(00)00493-0
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
An overview is given on the origins for the occurring type of rafting and the consequences for subsurface rafting in turbine blades during service. It is shown that rafts aligned more or less parallel to the surface of monocrystalline nickel-base superalloys can be induced by shot peening and subsequent high-temperature ageing. Anomalous rafting in turbine blades occurring during service may be caused by mechanical machining of the surface before the coating procedure.
引用
收藏
页码：807 / 812
页数：6
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