摘要
利用感应凝壳熔炼方法,在预热的金属型中离心浇注了名义成分为Ti-48Al-2Cr-2Nb(原子分数,%)的CA4GE型发动机用排气门。将铸态TiAl基合金排气门在CA4GE型发动机上进行了200h的可靠性实验和复试,结果表明TiAl基合金排气门完全满足发动机的可靠性和耐磨性要求。讨论了TiAl基合金排气门批量生产中所面临的成本问题。
Ti-48Al-2Cr-2Nb （at.%） exhaust valves for CA4GE-engine were manufactured by induction skull melting （ISM） procedure in a preheated permanent mold. As-cast valves were tested for 200 hours, which showed high reliability and good wear resistance. In addition, the problem regarding the manufacturing cost of TiAl valves in high-volume had been discussed.
出处
《铸造》
EI
CAS
CSCD
北大核心
2006年第7期735-738,共4页
Foundry
基金
山东理工大学科研基金(4040-304019)
关键词
排气门
金属型
TIAL基合金
exhaust valve
permanent mold
TiAl-based alloy
