王红星,王再友,柳秉毅,宋云云,张炎

• 1:南京工程学院材料工程学院

摘要(Abstract)：

采用浆料包渗法,以B4C为供硼剂,NH4Cl+KBF4为复合活化剂,SiC为填充剂,蛋白质(鸡蛋清)为粘结剂,在W6Mo5Cr4V2高速钢表面制备渗硼层。研究了渗硼温度对渗硼层组织和性能的影响。结果表明:包渗温度650℃时,渗硼层组织以Fe2B相为主,在750℃、850℃时,形成了V2B3相,在950℃时渗硼层组织中出现了Fe2Si0.4B0.6相;渗硼层的显微硬度随温度的升高先增后降低,其最小显微硬度值为810 HV,为基体的(235 HV)3.5倍;渗硼层最小摩擦系数为0.12,为基体的1/3。磨损机制在750℃时发生转变,由粘着磨损为主转变为磨料磨损为主。

关键词(KeyWords)： W6Mo5Cr4V2高速钢;渗硼温度;耐磨性能

Abstract:

Keywords:

基金项目(Foundation): 江苏省自然科学基金项目(BK2009355);; 南京工程学院资助项目(YKJ201203,CKJB201205)

作者(Author): 王红星,王再友,柳秉毅,宋云云,张炎

DOI: 10.13289/j.issn.1009-6264.2014.06.035

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