等温处理过程中冷拔珠光体钢丝的组织及其性能Evolution of microstructure and mechanical properties of cold drawn pearlitic steel wires during isothermal treatment
沈云霞,方峰,蒋建清
摘要(Abstract):
对冷拔钢丝进行不同保温时间下的等温处理,研究此过程中钢丝组织、力学性能的变化。等温初期,铁素体片中析出细小渗碳体颗粒,钢丝的抗拉强度有所上升,塑性急剧下降,并出现扭转分层现象。等温后期,渗碳体片发生球化,析出相长大,并且铁素体片发生明显回复,三者综合作用造成钢丝的抗拉强度下降,塑性提高。
关键词(KeyWords): 珠光体钢;渗碳体;球化
基金项目(Foundation): 国家重点基础研究发展规划项目(2007CB616903)
作者(Author): 沈云霞,方峰,蒋建清
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