摘要
研究了真空热处理对W－7Ni－3Fe高密度合金力学性能的影响。结果表明，真空热处理可使合金试样的抗拉强度及伸长率显著提高，但对冲击劫度影响不大。通过对合会试样断口形貌的扫描电镜（SEM）观察及对试样断口表面合金元素价态的X射线光电子能借（XPS）分析，探讨了真空热处理对合金力学性能影响的机理。
The effect of vacuum heat treatment on the mechanical properties of the W－7Ni－3Fe heavy alloywas investigated．The results show that the tensile strength and elongation of the as－sintered specimens aremarkedly improved by vacuum heat treatment while the impact toughness is a little influenced．The fracture be－havior of the alloy specimen was investigated by scanning electron microscope and the valence state of alloying el－ements on the fracture surfaces was determined by X－ray photoelectron spectroscope．The mechanism of the effect of vacuum heat treatment on themechanical properties of the alloy was discussed．
出处
《金属热处理》
CAS
CSCD
北大核心
1996年第3期5-8,共4页
Heat Treatment of Metals
关键词
钨镍铁合金
高密度
力学性能
真空热处理
W-7Ni-3Fe heavy alloy，vacuum heat treatment, mechanical properties
