为提高Q255的冲蚀磨损性能,利用氩弧熔覆方法制备了铁基合金TiB2-Al2 O3涂层。熔覆层显微硬度最高为913.5 Hv0.2是基体硬度的5.9倍;熔覆层的冲蚀磨损性能较基体提高了1.77~4.22倍。熔池组织均匀细小,XRD分析显示,熔覆层由Fe、Al、TiO2、TiB2、Fe2 B、Al2 O3相组成。
Fe based alloy TiB 2-Al2 O3 coating was prepared by argon arc cladding method in order to improve the erosion wear performance of Q 255 .The highest micro-hardness of the cladding layer is 913 .5 Hv0.2 and is 5.9 times of that of the matrix .The erosion wear resistance of the cladding layer is increased by 1.77-4.22 times comparing with that of the matrix .The micro-structure of the weld pool is small and uniform.XRD results show that the cladding layer is composed of Fe , Al, TiO2 , TiB2 , Fe2 B and Al2 O3 phases .
参考文献
[1] | 马壮;陶莹;关博文;李智超.热处理对 Ni-W-P化学镀层耐石油腐蚀磨损性能的影响[J].金属热处理,2014(8):57-60. |
[2] | 刘喜明;连建设;赵宇.氩弧熔覆层的强化和耐磨性[J].机械工程材料,2000(3):14-17. |
[3] | 马壮;陶莹;王倪;周鹏;李智超.渗层重熔工艺研究进展[J].金属热处理,2014(4):7-10. |
[4] | 陈冰泉.低碳钢表面氩弧硼-碳合金化工艺研究[J].机械工程学报,2004(02):161-164. |
[5] | 马壮;张莉;王义伟.有色合金A-TIG焊研究现状[J].材料导报,2014(1):91-94. |
[6] | 郝建军;赵建国;彭海滨;李建昌;马跃进.氩弧熔覆WC增强镍基涂层的组织与性能分析[J].焊接学报,2009(12):26-28. |
[7] | 高雪松;黄因慧;田宗军;刘志东;沈理达;王东生.钛合金表面激光熔覆等离子体喷涂Al2O3+13%TiO2涂层冲蚀磨损性能[J].中国激光,2010(3):858-862. |
[8] | 王振廷;丁元柱;梁刚.钛合金表面氩弧熔覆原位合成TiB2-TiN涂层组织及耐磨性能[J].焊接学报,2011(12):105-108. |
- 下载量()
- 访问量()
- 您的评分:
-
10%
-
20%
-
30%
-
40%
-
50%