A THERMODYNAMIC ANALYSIS OF THE BRITTLENESS OF POLYCRYSTALLINE NI3AL ALLOY

被引：6
|
作者：
WANG, JS
机构：
[1] Division of Applied Sciences, Harvard University, Cambridge
来源：
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1995年 / 192卷
基金：
美国国家科学基金会;
关键词：
NICKEL; ALUMINUM; ALLOYS; CRYSTALS; BRITTLENESS;
D O I：
10.1016/0921-5093(94)03220-3
中图分类号：
TB3 [工程材料学];
学科分类号：
0805 ; 080502 ;
摘要：
A thermodynamics and kinetics analysis of moisture-induced embrittlement (MIE) in polycrystalline Ni3Al and Co3Ti alloys is presented in this work. This shows that both alloys are susceptible to MIE, but the propensity in Co3Ti alloys is weaker, and that the mobility of moisture-induced hydrogen atoms plays an important role in MIE. Based on this model, MIE will not occur at cryogenic temperatures; high strain rates and segregation of boron subdue MIE.
引用
收藏
页码：371 / 378
页数：8
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