MGH956合金冷轧薄板粗大再结晶晶粒形成机理

1.钢铁研究总院高温材料研究所,北京,100081

2.钢铁研究总院高温材料研究所,北京,100081

3.钢铁研究总院高温材料研究所,北京,100081

基金项目: 国家自然科学基金资助项目(50301006)

Forming mechanism for large recrystallization grains in MGH956 alloy cold rolled sheet

探讨MGH956合金冷轧薄板中粗大再结晶晶粒的形成原因,以及合金中的弥散颗粒对再结晶过程的作用和影响.结果表明MGH956合金中存在的细小弥散Y2O3颗粒,抑制了再结晶的形核过程,使合金中仅形成少量形核核心,在1300℃左右高温退火中,少量形核核心迅速长大,因此形成了粗大的再结晶晶粒组织.

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