增强体表面镀钛对TiC/TC4复合材料耐磨性的影响  

Effect of titanium plating on the surface of reinforcement on wear resistance of TiC/TC4 composites

作　　者：赵彦文[1] 闫华[2] ZHAO Yanwen;YAN Hua(Department of Automotive Engineering,Zhengzhou Technical college,Zhengzhou 450121,China;School of Materials Engineering,Shanghai University of Engineering Science,Shanghai 201620,China)

机构地区：[1]郑州职业技术学院汽车工程系,河南郑州450121 [2]上海工程技术大学材料工程学院,上海201620

出　　处：《兵器材料科学与工程》2022年第3期30-34,共5页Ordnance Material Science and Engineering

基　　金：国家自然科学基金(U1730130);河南省人民政府自然科学联合基金(U1804252)。

摘　　要：为研究增强体表面镀钛对TiC/TC4复合材料耐磨性能的影响,以酒精为分散剂对酸洗和碱洗后的钛合金颗粒进行真空微蒸发镀钛处理,获得镀钛后的钛合金粉。将质量分数大于99%的碳化钛粉和镀钛后的钛合金粉,按不同比例混合,压制成不同增强体表面镀钛的TiC/TC4复合材料。测试其表面形貌和微观结构,并进行滑动摩擦和拉伸试验。结果表明:增强体表面镀钛处理的TiC/TC4复合材料硬度上升12.3HV,抗拉性能提高40 MPa,磨损量降低0.06 mg,动摩擦因数降低0.23,摩擦后不易脆性断裂,摩擦痕迹较轻微,耐磨性良好。composite,the titanium alloy particles after pickling and alkali washing were treated by vacuum micro evaporation titaniumplating with alcohol as dispersant,and the titanium alloy powder after titanium plating was obtained.Titanium carbide powderwith purity greater than 99%and titanium alloy powder after titanium plating were mixed in different proportions and pressed intoTiC/TC4 composite specimens coated with titanium on the surface of different reinforcements.The surface morphology andmicrostructure were tested,and the sliding friction and tensile tests were carried out.The results show that the hardness of TiC/TC4 composite treated by titanium plating on the surface of reinforcement is increased by 12.3HV,the tensile property isincreased by 40 MPa,the wear loss is reduced by 0.06 mg,and the friction coefficient is reduced by 0.23.It is not prone tobrittle fracture after friction,with slight friction trace and good wear resistance.

关 键 词：增强体 表面镀钛 TiC/TC4复合材料 耐磨性 钛合金颗粒 

分 类 号：TB302[一般工业技术—材料科学与工程]