Thermal stability of cold worked microstructure of MP159 alloy

来源期刊：中国有色金属学报(英文版)2002年第3期

论文作者：鲁世强 黄伯云 贺跃辉 唐建成

文章页码：392 - 395

Key words：thermal stability; cold work; MP159 alloy; exposure; intesecting network

Abstract: In order to know the longest permissible thermal exposure time during which the cold worked (CW) microstructure would remain unchanged, the effect of the thermal exposure at temperatures ranging from 910℃ to 1070℃ on the microstructure was investigated for MP159 alloy by optical microscopy and transmission electron microscopy (TEM). Such a study can provide guidance for determining reasonable hot forging parameters of fasteners. The results indicate that the intersecting network of fine platelets in CW microstructure are thermal stable when thermal exposure temperature does not exceed 920℃. When thermal exposure temperature exceed 920℃, the intersecting network of fine platelets will dissolve, but the thermal exposure temperature has the longest permissible thermal exposure time during which the intersecting network of fine plate lets will not dissolve.