Non-destructive prediction method of creep damage and remnant life related to those under creep-fatigue interactive conditions for nickel base superalloys

被引：2
|
作者：
Ando, A. [1 ]
Yokobori, A. Toshimitsu, Jr. [1 ]
Sugiura, R. [1 ]
Ohmi, T. [1 ]
Ozeki, G. [1 ]
Matsubara, T. [2 ]
机构：
[1] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808579, Japan
[2] Palmeso Co Ltd, Niigata, Japan
来源：
MATERIALS AT HIGH TEMPERATURES | 2015年 / 32卷 / 03期
关键词：
Nickel base superalloy; Non-destructive prediction; Creep damage; Remnant life; Microdamage; Micro slurry-jet erosion; CRACK-GROWTH RATE; HIGH-TEMPERATURE; Q-ASTERISK; PARAMETER; BEHAVIOR;
D O I：
10.1179/0960340914Z.00000000067
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
In order to clarify the microdamage formation behaviour for high temperature brittle IN100 alloy, a polycrystalline nickel base superalloy, in situ observational test was carried out to observe creep damage formation behaviour of a notched IN100 specimen. Furthermore, the experimental findings of creep damage formation were evaluated by an original elastic-plastic creep finite element analysis. As a result, microcracks and damage forming areas were found to develop in the creep damage areas suggested by this analysis. This has resulted in the development of a non-destructive prediction method for creep damage accumulation and material's remnant life. The application of this method to the cases under creep-fatigue conditions was addressed.
引用
收藏
页码：266 / 275
页数：10
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