摘要
介绍了单晶合金研制和应用中的成本考虑因素.通过降Re加Ru的合金成分的调整可以提高合金的长时组织稳定性,大幅降低合金的成本.适量C,B,Hf能提高合金可铸性,有利于提高单晶叶片的成品率.重新固溶处理可有效的延长单晶合金的使用寿命.应用计算材料学可大大缩短合金的研制周期,返回料的应用既降低了成本,又符合环保要求.
The cost considerations during the development and application of single crystal (SC) superalloys have been described in this paper. The partial substitution of Ru for Re can increase the long term microstructure stability of the SC superalloy and lower their cost significantly. The addition of C, B and Hf can improve the castability of the alloy, and hence increase the yield of blade production. Re-solution treatment can prolong the service life of the SC superalloys effectively. The use of computer materials design will shorten the development period of the alloy. The use of revert materials can decrease the cost, economize resource and meet the requirement of environment protection.
出处
《金属学报》
SCIE
EI
CAS
CSCD
北大核心
2002年第11期1203-1209,共7页
Acta Metallurgica Sinica
