有色金属材料与工程2024，Vol.45Issue(6)：68-74,7.DOI:10.13258/j.cnki.nmme.20231204001
纯钛板表面缺陷形成机制以及对组织性能的影响
Formation mechanism of surface defect and its influence on microstructure and properties of pure titanium plate
摘要
Abstract
There are defect on the surfaces of the annealed cold rolled pure titanium plate.Therefore,the defect area and the normal area are selected and analyzed by optical microscope,scanning electron microscope,and Vickers hardness tester.It can be seen that there is no significant difference in the metallographic structure between the defect position and the normal position of the titanium plate,and no obvious oxide layer appeared.The<0001>crystal orientation dominates in the defect area,and the crystal orientation distribution in the normal area is very uniform without obvious orientation concentration.There are many different types of oxides and inclusions in the defects.According to the analysis,it is mainly caused by the introduction of Fe,Mg,O,C,Si,Al and other elements in the metallurgical process.The average Vickers hardness is 130.1 in the defect position while 104.7 in the normal position,which is 25.4 higher than that in the normal position.The fine precipitates dispersed in the defect position are mainly composed of TiC and trace(Fe,Ti)C.关键词
钛板/缺陷/微观组织/维氏硬度Key words
titanium plate/defect/microstructure/Vickers hardness分类
金属材料引用本文复制引用
张俊祺,张明玉,宋一新,岳旭..纯钛板表面缺陷形成机制以及对组织性能的影响[J].有色金属材料与工程,2024,45(6):68-74,7.基金项目
自治区重点研发计划资助项目(2022B01029) （2022B01029）
自治区创新环境(人才、基地)建设专项—天山创新团队计划资助项目(2020D14041) （人才、基地）
