摘要
评述了镍基铸造高温合金的热等静压（HIP）处理对组织和力学性能的影响.镍基铸造高温合金由于存在着铸造工艺难以消除的气孔类缺陷,严重影响着合金的使用可靠性和成品率 通过HIP处理后的合金,不仅可有效地消除合金中的缺陷,获得致密合金,而且还可改善合金的显微组织,提高合金的拉伸、持久和疲劳性能,显著地减小性能分散度.
The effect of hot isostatic pressing (HIP) treatment on microstructure and mechanical properties of cast Ni-base superalloy as reviewed. Due to the existence of cast defects, such as pores, which are inevitable in cast processing, the reliability and the proportion of finished cast products are greatly depressed. Through HIP treatment, not only a compact alloy can be obtained because of the elimination of defects, but also the microstructure improved resulting in the increase in the stress rupture, tensile and fatigue properties, and the decrease in mechanical properties decentralization.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第11期1199-1202,共4页
Acta Metallurgica Sinica
关键词
镍基铸造高温合金
热等静压处理
显微组织
力学性能
cast Ni-base superalloy, hot isotatic pressing, microstructure, mechanical property
