宫美娜,李海军,王斌,王昭东

• 1:东北大学轧制技术及连轧自动化国家重点实验室

摘要(Abstract)：

研究了EH47微合金钢连铸坯经传统轧制和热芯大压下轧制后室温下的组织和析出相形貌,并采用MMS-200热模拟双道次压缩实验研究了其经热芯大压下轧制后的第二相粒子应变诱导析出行为。结果表明:热芯大压下轧制后EH47微合金钢连铸坯的芯部铁素体尺寸较传统轧制的芯部铁素体尺寸明显减小;热模拟双道次压缩实验表明,热芯大压下轧制后,EH47微合金钢的应变诱导析出第二相粒子在位错、晶界、亚晶界上沉淀析出,在一定程度上起到钉扎晶界并阻碍再结晶晶粒长大的作用。

关键词(KeyWords)： 连铸坯;热芯大压下轧制;应变诱导析出;芯部组织

Abstract:

Keywords:

基金项目(Foundation): 国家重点研发计划(2017YFB0304603);; 辽宁省自然科学基金面上项目(201602255)

作者(Author): 宫美娜,李海军,王斌,王昭东

DOI: 10.13289/j.issn.1009-6264.2018-0428

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