DC53钢渗硼处理对45钢摩擦影响层组织演化的影响

材料热处理学报, 2016, 37(7): 191-197.

DC53钢渗硼处理对45钢摩擦影响层组织演化的影响

谢仕芳 ^1, , 张林伟 ^2, , 毛丹丹 ^3, , 陆德平 ^4, , 万珍珍 ^5, , 韦习成 ^6,

1.江西省科学院应用物理研究所,江西南昌,330096

2.江西省科学院应用物理研究所,江西南昌,330096

3.国家知识产权局专利局专利审查协作江苏中心,江苏苏州,215163

4.江西省科学院应用物理研究所,江西南昌,330096

5.江西省科学院应用物理研究所,江西南昌,330096

6.上海大学材料科学与工程学院,上海,200072

基金项目: 江西省对外科技合作计划(20151BDH80002) 国家国际科技合作专项(2013DFR50900) 国家自然科学基金(50975166)

关键词： 45钢 , 固体渗硼 , 干滑动摩擦 , 磨损影响层

Effect of boronizing of DC53 steel on microstructure evolvement in sliding friction-induced deformation layer of 45 steel

Keywords： 45 steel , boronizing , dry sliding friction , friction-induced deformation layer

采用销盘摩擦磨损试验机研究了DC53钢渗硼处理对对摩副45钢摩擦影响层组织演变的影响.通过SEM、XRD、SIMS、TEM等分析了45钢摩擦影响层的微观组织特征.结果表明,渗硼处理显著提高了DC53钢盘试样的表层显微硬度,降低了摩擦副的摩擦系数及其自身的磨损率;对摩副渗硼的45钢销试样的摩擦影响层由塑性变形层和剥离层组成,而对摩副未处理的45钢销试样的摩擦影响层仅包括塑性变形层;对摩副中的Cr、Mo及B元素扩散到了45钢销试样的摩擦表层,且在对摩副渗硼的销试样中的扩散深度大于在对摩副未处理的销试样中的扩散深度;对摩副渗硼的45钢销试样的摩擦表层的晶粒明显细化.

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