镍基单晶高温合金表面再结晶控制技术的研究进展

针对镍基单晶高温合金构件的表面再结晶控制技术,结合国内外相关工作的研究状况,从单晶高温合金构件表面再结晶的形成机理、再结晶的表面效应、基于再结晶预防的构件设计、单晶构件热成型过程和冷加工过程再结晶控制技术等几方面,对镍基单晶高温合金构件的表面再结晶控制技术领域取得的研究成果进行总结和分析。重点论述了各国单晶再结晶控制技术,提出中国镍基单晶高温合金构件的表面再结晶控制技术存在的差距及未来研究重点。

Research progress of surface-recrystallization control technology of Ni-based single-crystal superalloy

In this paper, the research progress of the surface-recrystallization control technology of Ni-based single-crystal superalloy is reviewed and analyzed from several aspects including the mechanism and surface effects of surface recrystallization, the component design for recrystallization prevention, and recrystallization control technology during thermal forming or cold working progress. The focus is on discussing recrystallization control technology in different countries. Meanwhile, the gap between China and some other countries in this respect is pointed out, and the future research scope is also discussed.