Mo基MoSi2复合材料的力学和抗热震性能研究  

Study on Mechanical Properties and Thermal Shock Resistance of Mo-MoSi_2 Composite Materials

作　　者：张士宪[1,2] 赵晓萍 李慧[2] 梁精龙 ZHANG Shixian;ZHAO Xiaoping;LI Hui;LIANG Jinglong(Hebei College of Industry and Technology,Shijiazhuang 050091,China;Key Laboratory of Ministry of Education for Modern Metallurgy Technology,College of Metallurgy and Energy,North China University of Science and Technology,Tangshan 063009,China)

机构地区：[1]河北工业职业技术学院,石家庄050091 [2]华北理工大学冶金与能源学院,河北省现代冶金技术重点实验室,唐山063009

出　　处：《电镀与精饰》2018年第12期11-15,共5页Plating & Finishing

基　　金：河北工业职业技术学院资助科研项目(ZY2016002);河北省基础研究项目(E2016209163);河北省高等学校科学技术研究项目(BJ2017050).

摘　　要：采用热浸镀法制备Mo基MoSi_2复合材料,通过对Mo基MoSi_2复合材料的硬度和镀层结合强度的研究,揭示了该材料的室温力学性能和抗热震性能。结果表明,Mo基MoSi_2复合材料具有较高的表面硬度;材料表面镀层和钼基体达到了良好的冶金结合,镀层与基体具有很高的结合强度;经过多次热冲击实验后,镀层与基体结合紧密,具有良好的抗热冲击性能和抗疲劳性能,起到保护Mo基体的关键作用。Mo-MoSi2 composite materials were prepared by hot dip coating process.The mechanical properties under room temperature and thermal shock resistance of Mo-MoSi2 composite materials were revealed through hardness testing and coating combination degree research.The results showed that Mo-MoSi2 composite material had high surface hardness.Good metallurgical bonding can be obtained between the surface coating and molybdenum matrix,and the coating had high bonding strength with the substrate.After many thermal shock tests,the coating was still bound to the substrate tightly,and had good thermal shock resistance and fatigue resistance which played a key role in protecting Mo matrix.

关 键 词：Mo基MoSi2复合材料 硬度 结合强度 热震性 

分 类 号：TB331[一般工业技术—材料科学与工程]