Ti-Cr-V-Al合金的阻燃机理实验研究  

Experimental Studies on Burn Resistant Mechanism of Ti-Cr-V-Al Alloys

作　　者：刘玉芹[1] 白克武[1] 张翥[1] 沈剑韵[1] 

机构地区：[1]北京有色金属研究总院,北京100088

出　　处：《稀有金属》2000年第6期463-465,共3页Chinese Journal of Rare Metals

基　　金：国家自然科学基金

摘　　要：利用激光点火法测定了TC4合金和Ti Cr V Al合金的阻燃性能 ,用X射线衍射、扫描电镜、X射线能谱等方法分析了激光点火后两种合金烧蚀坑的表面形貌和成分分布。Ti Cr V Al合金的阻燃性能明显优于TC4合金。在Ti Cr V Al合金烧蚀坑中心区域 ,铬和钒的含量远低于基体 ,表明铬和钒的燃烧产物大量以气相形式逸出 ,与阻燃机理理论分析结果一致。The burning resistivities of Ti Cr V Al alloy and TC4 alloy were studied by laser ignition method.The morphology and composition distributions of ignited samples were examined by SEM,EDS and XRD.It is found that the Ti Cr V Al alloy has superior burning resistivities to TC4 alloy.In the center of combusted cave center of Ti Cr V Al alloy,very small amounts of elements Cr and V was dectected by EDS.It is shown that most combustion products of elements Cr and V have vaporized as gas phase.The experimental results agree well with the theoretical analysis of burn resistant mechanism.

关 键 词：阻燃钛合金 阻燃机理 激光点火 航空发动机 

分 类 号：V252.2[一般工业技术—材料科学与工程] TG146.23[航空宇航科学与技术—航空宇航制造工程]