【摘要】 采用X射线衍射分析、金相组织观察和透射电镜等技术手段,研究了Er对1420合金板材织构的影响。结果表明,微量Er能够增强1420合金板材变形织构,其中黄铜织构B{011}<211>增强最为明显,其主要原因是加入微量Er可降低1420合金的层错能,同时Er与位错之间存在较高的交互作用能。另外,Er的抑制再结晶和细化再结晶晶粒作用也有利于变形织构的形成与维持。更多还原

【Abstract】 The influence of trace rare earth element Erbium on the texture of 1420 alloys was investigated by X-ray diffraction,optical microstructure tester and TEM.The results show that the deformation texture of 1420 alloy plate is enhanced with trace Er added in,and the enhancement of brass texture B{011}<211> is the most prominent,which is attributed mainly to the effect of Er on decreasing fault energy of 1420 alloy and the high interaction energy between Er and dislocation.And the recrystallization inhibiting and grain refining effects of Er are helpful to the formation and maintenance of the deformation texture as well.更多还原