摘要
根据非稳态扩散方程,对Inconel 718焊接试样中铌在固溶处理时的均匀化过程进行了计算,以此说明了要求高温长时间固溶处理的原因,表明了减少条状组织中d-Ni3Nb相的间距是进一步提高延伸率的有效方法。
The niobium homogenization process of Inconel 718 welded sample during solution annealing has been calculated by the diffusion equation of non-steady state. Based on the calculation result,the reason why high temperature and long time are necessary for solution annealing has been explained. The results show that it is an effective method for further improvement of elongation to decrease the distance between d-Ni3Nb phase in streaky microstructure.
出处
《核动力工程》
EI
CAS
CSCD
北大核心
2003年第3期241-244,共4页
Nuclear Power Engineering