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 BeijingBeijingChina doctorate student POBox University of Science and Technology BeijingBeijing China ^{[604
,100083
]}

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：

<正> 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.

引用

页码：405 / 409

页数：5

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