论文部分内容阅读
本文研究了合金化的Ni_3Al-Fe基合金高温变形后的组织及瞬时拉伸性能和700—900℃的蠕变持久性能,结果表明,合金由γ′的β相组成,其晶粒在温度低于1000℃时保持稳定;屈服强度在<600℃时也保持稳定;合金的高温塑性好,蠕变研究表明,该合金在700—900℃蠕变由位错攀移控制,其蠕变激活能为439kJ/mol,应力敏感系数为4.
In this paper, the microstructure and instantaneous tensile properties of the alloying Ni_3Al-Fe based alloys after high temperature deformation and the creep permanent properties of 700-900 ℃ have been investigated. The results show that the alloy consists of β phase of γ ’ The results show that the creep of the alloy is controlled by dislocation climbing at 700-900 ℃ and its creep activation energy Is 439 kJ / mol and the stress sensitivity coefficient is 4.