保温温度对TiZr基熔体/Ti基合金复合材料界面特征及熔体层结构的影响  

Effects of Holding Temperature on Interface Characteristics and Melt Layer Microstructure of TiZr-based Melt/Ti-based Alloy Composites

作　　者：李恒娟 王俊青[1] 石凤琴[1] 张帅富 LI Hengjuan1,2, WANG Junqing1, SHI Fengqin1, ZHANG Shuaifu3(1. Office of Academic Affairs, Beijing City University, Beijing 101300, China;2. Department of Mechanical and Electrical Engineering, Beijing Modem Vocational and Technical College, Beijing 101300, China; 3. Shanghai Kaixun Engine Co., Ltd., Shanghai 200000, Chin)

机构地区：[1]北京城市学院教务处,北京101300 [2]北京现代职业技术学院机电工程系,北京101300 [3]上海凯迅发动机有限公司,上海200000

出　　处：《热加工工艺》2018年第14期124-126,共3页Hot Working Technology

摘　　要：在不同保温时间下,对Ti Zr基熔体与Ti基合金进行熔炼实验,分析界面微观形貌特征及其熔体层结构与保温温度之间的关系。结果表明：基片与熔体的接触界面出现显著变化,基片面出现溶解现象。随保温温度上升,基片溶解深度也明显增加,界面形貌特征差异性也变得更加明显;在较高的保温温度范围,可以观察到上下基片之间的溶解深度差异明显。当保温温度高于950℃,熔体层众多小颗粒完全消失不见。对钛锆基熔体试样进行XRD测试得到了类似合金的漫散射峰,但熔体层则生成了布拉格衍射峰,可能钛锆基熔体试样熔体层包含晶体与两种物相结构。The melting experiments of Ti Zr-based melt and Ti-based alloy were carried out under different holding time,and the relationship between the microstructure of interface and melt layer structure and holding temperature were analyzed.The results show that, the interface between the substrate and the change melt significantly, and the substrate dissolves. With the increase of the holding temperature, the dissolution depth of the substrate also increases obviously, and the differences in the interface morphology also become more obvious. In higher temperature range, the difference of dissolution depth between the upper and lower substrates is obvious. When the holding temperature is higher than 950 ℃, many small particles in the melt layer disappear completely. The diffuse peaks of similar alloys were observed by XRD test of Ti Zr-based melt samples.However, Bragg diffraction peaks are formed in the melt layer, Ti Zr-based melt sample’s melt layer contains crystals and two phases structure.

关 键 词：TI基合金 Ti-Zr基熔体 界面 保温温度 

分 类 号：TB331[一般工业技术—材料科学与工程] TG111.6[金属学及工艺—物理冶金]