EFFECT OF Mg AND δ-PHASE ON MECHANICAL PROPERTIES OF ALLOY GH169(INCONEL718)

被引：1
|
作者：
DONG Jianxin XIE Wei~* XU Zhichao XIE Xishan ZHANG Shouhua University of Science and Technology Beijing
机构：
来源：
Acta Metallurgica Sinica(English Edition) | 1993年 / 06期
关键词：
superalloy GH169; mechanical property; δ-phase; Mg; creep/fatigue interaction; craek propagation rate;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
Micro-alloying of Mg,ranged from 30 to 70 ppm,may improve the high temperatureductility,stress rupture,especially,certain important mechanical properties,such as cyclicstress rupture,creep/fatigue interaction and crack propagation rate.The quantity,morphology and distribution of δ-phase may obviously influence the notched cyclic stress rup-ture life.The relevant microstructure shows that the Mg may also influence to certain extenton the feature of δ-phase.Thus,to keep the Mg and δ-phase under control may further im-prove the mechanical properties of alloy GH169.
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页码：405 / 409
页数：5
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