难熔金属Mo表面冷喷涂Al后预氧化处理工艺研究  

Study on the Pre-oxidation Process of Pure Al Layer on the Surface of Refractory Metal Mo by Cold Spraying

作　　者：何涛 赵连祥 刘恩泽[3] 郭金花 刘凯 刘海波 马玉山 宁礼奎[3] 佟健[3] 谭政[3] 李海英 郑志[3] He Tao;Zhao Lian-xiang;Liu En-ze;Guo Jin-Hua;Liu Kai;Liu Hai-bo;Ma Yu-shan;Ning Li-kui;Tong Jian;Tan Zhen;Li Hai-ying;Zheng Zhi(Wu Zhong instrument Co.,Ltd.Wuzhong 751100,China;Military Representative Office of the Army Equipment Department in Shenyang,Shenyang 110004,China;Institute of Metal Research,Chinese Academy of Sciences,Shenyang 110016,China;Aerospace Science and Technology Defense Technology Research and Experimental Center,Beijing 100000,China;Mat foundry group,Dalian 116000,China)

机构地区：[1]吴忠仪表有限责任公司,宁夏吴忠751100 [2]陆军装备部驻沈阳地区军事代表局驻沈阳地区第二军事代表室,辽宁沈阳110004 [3]中国科学院金属研究所,辽宁沈阳110016 [4]航天科工防御技术研究试验中心,北京100000 [5]迈艾特(大连)汽车零部件有限公司,辽宁大连116000

出　　处：《有色矿冶》2021年第5期37-40,共4页Non-Ferrous Mining and Metallurgy

摘　　要：利用冷喷涂技术在难熔金属Mo表面制备一层纯Al层,然后采用不同预氧化工艺进行了氧化处理,研究发现经过相同氧化时间随着温度升高纯Al层的氧化程度越大,结合烧蚀试验考核找到了比较合理的预氧化工艺参数为:1100℃/30min+1200℃/30min。采用合理预氧化工艺处理后,金属Mo能够抵御熔模铸造过程中的烧蚀,为研发难熔金属型芯技术奠定一定的基础。Pure Al layer on the surface of refractory metal Mo were sprayed by cold spray technology.Pre-oxidation of pure Al layer were tested in different temperature and time.The results show with the increase of test temperature increases the oxidation of pure Al layer.By the test of erosion,the optimization pre-oxidation process was found and the process is 1100℃/30 min+1200℃/30 min.By the optimization pre-oxidation treatment,the refractory metal Mo core is endured erosion.It is good fundamental research for the development of refractory metal core.

关 键 词：难熔金属 冷喷涂 烧蚀 预氧化 

分 类 号：TG17[金属学及工艺—金属表面处理]