摘要
TiAl基合金作为一种新型轻质高温结构材料,以其密度低、比强度和比模量高,具有较好的抗氧化和蠕变性能以及优异的抗疲劳性能,在航空航天和汽车等领域具有广阔的应用前景。本文主要介绍了TiAl基合金的熔炼技术、熔模精密铸造技术及应用研究,并提出了TiAl基合金熔模精密铸造技术的不足与展望。
TiAl-based alloys are emerging as potential light-weight, high-temperature structural materials and possess wide capacities of engineering applications in aeronautics, space and automobile industries because of their low density, high specific strength and specific modulus, good oxidation-resistance and creep-resistance, and excellent fatigue properties. The paper will focus on the melting and investment casting technology of TiAl-based alloys. Some applications of TiA; components are summarized and some shortcomings and challenges for the investment casting of TiAl-based alloys are also proposed.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2009年第3期554-558,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金项目资助(50674037)
关键词
TIAL基合金
熔模精密铸造
熔炼技术
应用研究
TiAl-based alloys
investment casting
melting technology
application research
