Ti-451合金油瓶的显微组织特征  

Microstructural Characteristics of Ti-451 Alloy Oil Tank

作　　者：林桥[1] 杨英丽[1] 赵彬[1] 段文森[1] 

机构地区：[1]西北有色金属研究院钛合金所,陕西西安710016

出　　处：《钛工业进展》2005年第3期29-31,共3页Titanium Industry Progress

摘　　要：采用普通金相法研究了451钛合金轻型喷火器油瓶的显微组织特征。研究结果表明:经S-S加工后油瓶壁和瓶底的显微组织相类似,均为晶粒较粗大、具有明显的β晶界、在晶内有片状二次α相析出,是一种过热组织。在距瓶壁表面形成一层白色富氧层,在该层中的显微组织是由块状α相和转变β相组成。The oil tank of Ti-451 titanium alloy used in lightweight liquid fire gun was studied by means of optical metallography. The result showed that microstructures of oil tank wall and bottom had a similar shape by S-S processing; the crystalline grain was coarse and it had β grain boundary, and second α phase was precipitated in intracrystalline. So it is a sort of over heat microstructure. A flat white rich oxide was formed in oil tank surface, whose microstructure was flake α phase and transformed β phase.

关 键 词：组织特征 油瓶 显微组织 研究结果 过热组织 钛合金 金相法 相类似 相析出 相组成 晶粒 Α相 块状 

分 类 号：TG113.12[金属学及工艺—物理冶金]