摘要
综述了L12有序结构沉淀相γ′-Co3(Al,W)强化的新型Co基高温合金的研究进展。重点介绍了在Co-Al-W三元合金的基础上添加不同合金元素后γ-γ′两相合金的典型显微组织、合金的成分偏析行为及高温性能,并展望了新型Co基两相高温合金的应用前景并指出了有待研究的问题。
A brief overview of the research progress of new cobalt-based alloys containing ordered L12 precipitates γ'-Co3(Al,W) was presented.The emphasis was on the microstructure,composition segregation and high temperature behavior of the γ-γ' alloys with addition of different elements into ternary Co-Al-W system.The applications of new cobalt-based alloys were forecast and the research prospect required in future was pointed out.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2012年第11期2064-2068,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51075335
10902086
50875217)
西北工业大学基础研究基金(NPU-FFR-JC201005)
关键词
新型Co基高温合金
显微组织
成分偏析
高温性能
new Co-based superalloys
microstructure
segregation behavior
high-temperature behavior