摘要
为了提高热轧高速钢工作辊的耐磨性,通过激光熔覆技术,在球墨铸铁基体上制备了(Ti,W)C质量分数分别为0%,10%,20%,30%的Inconel 625合金涂层.研究了(Ti,W)C颗粒对涂层微观结构、硬度和耐磨性的影响.(Ti,W)C颗粒均匀分布在涂层中,并与Inconel 625有良好的结合;涂层的硬度随着(Ti,W)C颗粒含量增加从HV0.2280提高到HV0.2424;在摩擦磨损过程中,(Ti,W)C颗粒作为硬质相抑制了磨损中基体材料的局部塑性变形,质量分数30%(Ti,W)C颗粒的Inconel 625合金涂层磨损量仅为0.015 mm^(3),平均摩擦系数为0.0616.证明添加适量的(Ti,W)C颗粒会显著提高Inconel 625合金涂层的硬度及耐磨性,并降低了摩擦系数.
In order to improve the wear resistance of hot-rolled high speed steel work rolls,Inconel 625 alloy coatings with 0%,10%,20%,and 30%(Ti,W)C content were prepared on ductile iron substrate by laser cladding technology.The effect of(Ti,W)C particles on the microstructure,hardness and wear resistance of the coatings was investigated.The(Ti,W)C particles are uniformly distributed in the coating,and have a good combination with the Inconel 625.The hardness of the coating increases from HV0.2280 to HV0.2424 with the increase of the(Ti,W)C particle content.In the process of friction and wear,the(Ti,W)C particles,as hard phases,inhibit the local plastic deformation of the material during wear.The wear amount of Inconel 625 alloy coating containing 30%(Ti,W)C particles is only 0.015 m^(3),and the average friction coefficient is 0.0616.It has been proved that the hardness and wear resistance of Inconel 625 alloy coating are significantly improved and the friction coefficient is reduced by adding a reasonable amount of(Ti,W)C particles.
作者
杨尚武
瞿海霞
黎恒君
刘常升
YANG Shang-wu;QU Hai-xia;LI Heng-jun;LIU Chang-sheng(School of Materials Science&Engineering,Northeastern University,Shenyang 110819,China;Central Research Institute,Baoshan Iron&Steel Co.,Ltd.,Shanghai 200000,China;Institute of Corrosion Science and Technology,Guangzhou 510530,China)
出处
《东北大学学报（自然科学版）》
EI
CAS
CSCD
北大核心
2024年第7期953-959,1019,共8页
Journal of Northeastern University(Natural Science)
基金
国家自然科学基金资助项目(51771051)。
