摘要
研究了Ｎｉ－Ｃｒ－Ａｌ硬弹合金的组织和性能．实验结果表明，不同的回火温度析出γ＇（Ｎｉ_３Ａｌ）相和富Ｃｒ（α）相的颗粒大小与分布状态亦不同．在５５０℃，５ｈ回火处理时，析出γ＇（Ｎｉ_３Ａｌ）相的周围产生大量的富Ｃｒ（α）相，颗粒细小，弥散分布，使合金的硬度和弯曲强度有明显地提高．
Studies on structures and properties of Ni-Cr-Al hard elastic alloys show that the grain sizesand distributions of γ' (Ni_3Al ) and Cr (α)-rich phases, which are precipitated at different tempering temperatures, are different. When temperature at 550℃, 5h,a number of Cr (α)-rich phase are found around γ' phasewith tiny grains and dispersed distribution. In addition, the hardness and bending strength of alloys also apparently improved.
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
1994年第4期399-402,共4页
Journal of Northeastern University(Natural Science)
关键词
回火温度
弯曲强度
镍基合金
硬度
dispersed distribution
Cr (α)-rich phase
tempering temperature
hard elastic alloys
bendingstrength.
