successive sedimentation method

The results show that the discontinuous reaction proceeded not only by a conventional cellular reaction controlled by the migrating of the grain boundary, but also a autocatalytic cellular reaction occurring in the grain.

结果表明:Zn Al40合金非连续沉淀既可发生受晶界迁移控制的常规胞状反应,形成片层相间的α Al+η Zn平衡组织,又可在晶内自发形核生长,发生自催化胞状反应,形成α Al基体上分布岛状的η Zn平衡组织。

In addition, discontinuous precipitation often occurs in the later stage during aging, which .

另外,合金时效后期易产生不连续沉淀,导致合金的强度、抗腐蚀性等性能大大降低。