高速火焰喷涂Fe-Al/Cr_3C_2复合涂层的冲蚀性能研究  

Research of Erosion Sesistance of HVOF-sprayed Fe-Al/Cr_3C_2 Composite Coating

作　　者：徐润生[1] 徐滨士[1] 马世宁[1] 董世运[1] 朱子新[1] 刘晓明[2] 

机构地区：[1]装甲兵工程学院装备再制造技术国防科技重点实验室,北京100072 [2]内蒙古电力科学研究院,内蒙古呼和浩特010020

出　　处：《热加工工艺》2005年第7期29-30,33,共3页Hot Working Technology

摘　　要：用高速火焰喷涂方法,在20钢基体上喷涂制备Fe-Al/Cr3C2复合涂层,对涂层的抗650℃冲蚀特性进行研究,利用扫描电镜分析冲蚀后涂层表面形貌。结果表明,高速火焰喷涂Fe-Al/Cr3C2复合涂层的冲蚀特性在300℃、450℃、650℃时分别主要为脆性冲蚀、塑性冲蚀和脆性冲蚀、塑性冲蚀;冲蚀角度对涂层的耐冲蚀性能有较大影响,30°时涂层的抗冲蚀能力优于90°时;温度升高,涂层的抗冲蚀性能提高。The Fe-Al/Cr3C2 composite coating was made in the 20 steel by HVOF. The erosion sesistance of HVOF-sprayed Fe-Al/Cr3C2 were researched. The coatings surface was analysed by SEM. The results show that the erosion mechanism of HVOF-sprayed Fe-Al/Cr3C2 is brittleness?brittleness-ductile and ductile at 300℃?450℃ and 650℃.Impingement angles do effects to erosion resistance, the erosion resistance of HVOF-sprayed Fe-Al/Cr3C2 at 30°impingement angles is better than that at 90°. The erosion resistance of HVOF-sprayed is enhanced with the temperature increasing.

关 键 词：高速火焰 Fe-Al/Cr3C2 冲蚀性能 

分 类 号：TG174[金属学及工艺—金属表面处理]