FRACTURE-BEHAVIOR OF W-NI-FE HEAVY ALLOYS

被引：123

作者：

CHURN, KS ^{[1
]}

GERMAN, RM ^{[1
]}

机构：

[1] RENSSELAER POLYTECH INST, DEPT MAT ENGN, TROY, NY 12181 USA

来源：

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 1984年 / 15卷 / 02期

关键词：

POWDER METALLURGY - Tungsten;

D O I：

10.1007/BF02645119

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The compositions ranged from 93 to 97 wt pct W, with the Ni:Fe ratio maintained at 7:3. Room temperature strength and ductility showed degradation with sintering times in access of two hours. Initial cracking occurs at the tungsten-tungsten grain boundaries and in the tungsten grain. These latter cracks propagate to give eventual failure. The ductility to failure is governed by the strength of the tungsten-matrix interface. The maximum elongation depends on the contiguity which in turn is set by composition.

引用

页码：331 / 338

页数：8

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