High temperature deformation and creep behaviors of directionally solidified (DS) Inconel 738LC crystals
In this study high temperature deformation and creep behaviors of DS IN738LC were studied.The yield strength and the total elongation decreased gradually with increase of temperature from room temperature to 500℃.The tensile strength and ductility increased rapidly with increase of temperature from 500℃ to 660 ℃.The flow stress of Incone1738LC increases with increasing temperature up to about 600℃ in the presence of γ precipitates.For high temperature creep, the stress exponent was observed to increase from 3~9 in the lower stress region to 13~16 in the higher stress region.The significant change of the stress exponent is likely to be attributed to the inverse temperature dependence of flow stress at high temperatures in directionally solidified IN738LC.
Creep Hot tensile test Inconel directionally solidified
Jong Su Ha Seong Uk An Pyung Woo Shin Sun Ig Hong
Department of Nanomaterials Eng.,Chungnam National University Deajeon,Korea Castec Ltd,Deajeon,Korea Department of Metallurgy and Materials Eng,Changwon University,Changwon,Korea
国际会议
香港
英文
112-115
2013-06-25（万方平台首次上网日期，不代表论文的发表时间）