低碳钢的淬火硬化与形变再强化  

Quench hardening and deformation reinforcement of low carbon steel

作　　者：张泉[1,2] 钱丽华 周宇 王薇[1] 李明[3] 吕知清 Zhang Quan;Qian Lihua;Zhou Yu;Wang Wei;Li Ming;Lu Zhiqing(Key Laboratory of Advanced Forging and Stamping Technology and Science of Ministry of National Education Yanshan University,Qinhuangdao Hebei 066004,China;Haibin College,Beijing Jiaotong University,Cangzhou Hebei 061199,China;National Engineering Research Center for Equipment and Technology of Cold Strip Rolling,Yanshan University,Qinhuangdao Hebei 066004,China)

机构地区：[1]燕山大学先进锻压成型技术与科学教育部重点实验室,河北秦皇岛066004 [2]北京交通大学海滨学院,河北沧州061199 [3]燕山大学国家冷轧板带装备及工艺工程技术研究中心,河北秦皇岛066004

出　　处：《金属热处理》2018年第11期212-215,共4页Heat Treatment of Metals

基　　金：河北省杰出青年基金(E2017203036)

摘　　要：将10钢（AISI 1010）在1200℃奥氏体化5 min后快速冷却（冰水淬火）,对其进行多道次冷轧变形,研究淬火低碳马氏体性能以及马氏体的形变再强化规律。试验结果表明,通过试验数据拟合得到了（超）低碳钢马氏体组织的淬火硬度计算公式;在变形初期（压下量小于30%）,铁素体随着冷轧变形量的增加硬度急剧增大,而低碳马氏体的形变再强化效果相对较弱;未经冷轧变形的低碳马氏体的极限强度计算值与试验值基本一致,随着变形量的增加,计算值与试验值之间的误差逐渐增大。10 steel （AISI 1010） was austenitized at 1200 ℃ for 5 min followed by rapidly ice water quenching to get the martensite microstructure,and then cold-rolled by different in thickness in multi-pass to study the behavior of quenched low-carbon martensite and the work hardening of martensite. The experimental results show that the as-quenched hardness calculation formula of low-carbon steel and ultralow-carbon steel is obtained by fitting the experimental data. In the initial stage of deformation （the cold-rolling reduction is less than 30%）,the hardness of ferrite increases sharply with the increase of cold-rolling deformation,but the work hardening effect of low-carbon martensite is relatively weak. The calculated value of the ultimate strength is close to the experimental value of low-carbon martensitic without cold-rolling deformation. With the increase of cold-rolling deformation,the error increases gradually.

关 键 词：高强度钢 马氏体 低碳钢 形变强化 

分 类 号：TG142[一般工业技术—材料科学与工程]