张志强,高鹏,李宪爽,李湘吉

• 1:吉林大学材料科学与工程学院
• 2:吉林大学辊锻工艺研究所

摘要(Abstract)：

为提高硼钢热冲压过程中的加热效率,降低能耗,提出一种脉冲电流快速加热方法。采用脉冲电流对高强度硼钢板进行处理,并通过单轴拉伸,硬度测试,微观组织观察和氧化程度分析研究电流对其性能和组织的影响。与电炉加热处理相比,脉冲电流处理后硼钢试样马氏体组织更加细小,显微硬度没有明显差异,抗拉强度上升3.85%,伸长率提高37.5%,氧化现象明显减少。热-电偶分析结果表明,试样中部温度高,均温区长,端部温度较低。与传统加热方法相比,采用脉冲电流直接加热方法,可有效提高加热效率、降低能耗。

关键词(KeyWords)： 金属材料;高强度硼钢;脉冲电流处理;数值模拟

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51205162,51275203)

作者(Author): 张志强,高鹏,李宪爽,李湘吉

DOI: 10.13289/j.issn.1009-6264.2016.02.041

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