FATIGUE CRACK-PROPAGATION BEHAVIOR OF A SINGLE CRYSTALLINE SUPERALLOY

被引：53
|
作者：
LERCH, BA
ANTOLOVICH, SD
机构：
[1] GEORGIA INST TECHNOL,SCH MAT SCI,ATLANTA,GA 30332
[2] GEORGIA INST TECHNOL,MECH PROPERTIES RES LAB,ATLANTA,GA 30332
来源：
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1990年 / 21卷 / 08期
关键词：
D O I：
10.1007/BF02647878
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Crack propagation experiments were performed as a function of temperature on the single crystalline superalloy RENÉ N4. Crack growth rates at 21 °C, 704 °C, 927 °C, 1038 °C, and 1093 °C were measured on specimens with [001] and [110] directions parallel to the load axis and the machined notch, respectively. Fracture surfaces at each temperature were examined and discussed in terms of the crack tip stress field and the crystallographic orientation of the specimens. © 1990 The Metallurgical of Society of AIME.
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页码：2169 / 2177
页数：9
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