摘要
分别以海绵钛和电解钛为原材料熔炼TC4钛合金,将熔炼后的铸锭进行热轧,研究两种原材料熔炼的铸锭轧制为TC4轧板后的组织与性能。结果表明,海绵钛TC4热轧板材组织较电解钛晶粒粗大,组织不均匀,而电解钛TC4热轧板材组织为均匀细长、条状交错的α相,呈现出类似网篮组织结构。海绵钛TC4板材的抗拉强度和洛氏硬度明显高于电解钛TC4钛合金板材,而电解钛TC4板材的塑性更好。海绵钛TC4板材的断裂方式为准解理断裂与韧性断裂的复合断裂,而电解钛TC4板材的断裂方式为韧性断裂。
Titanium sponge and electrolytic titanium were used as raw materials for smelting TC4 titanium alloy,respectively.The smelted ingot was hot rolled to investigate the microstructure and mechanical properties of the TC4 rolled sheet smelted by the two raw materials.The results show that the non-uniform microstructure of the sponge titanium TC4 alloy after hot rolling presents more coarse than that of the electrolytic titanium.After the electrolytic titanium TC4 was rolled,it presents a more uniform slender interlacedαphase,which exhibits a similar basket structure.The tensile strength and Rockwell hardness of the sponge titanium TC4 titanium alloy sheet are greatly higher than those of the electrolytic titanium TC4 titanium alloy sheet,however the plasticity of the electrolytic titanium TC4 sheet is the better.The fracture mode of titanium sponge TC4 titanium alloy sheet is characterized by the compound fracture of quasi-cleavage fracture and ductile fracture,while the fracture mode of electrolytic titanium TC4 is characterized by ductile fracture.
作者
谭聪
余堃
肖寒
张宏宇
黄海广
李志敏
刘昆
周荣锋
Tan Cong;Yu Kun;Xiao Han;Zhang Hongyu;Huang Haiguang;Li Zhimin;Liu Kun;Zhou Rongfeng(Yunnan Titanium Industry Co.,Ltd.;Faculty of Materials Science and Engineering,Kunming University of Science and Technology)
出处
《特种铸造及有色合金》
CAS
北大核心
2020年第1期104-107,共4页
Special Casting & Nonferrous Alloys
基金
云南省重大科技专项计划资助项目(2018ZE002)
云南省技术创新人才计划资助项目(2017HB104)
国家重点研发计划资助项目(2016YFB0301202)。
关键词
海绵钛
电解钛
TC4
显微组织
力学性能
Sponge Titanium
Electrolytic Titanium
TC4Alloy
Microstructure
Mechanical Properties
作者简介
第一作者:谭聪,男,1995年出生,硕士研究生,昆明(650093),电话:18487128010,E-mail:1392054911@qq.com;通信作者:黄海广,男,1985年出生,高级工程师,云南楚雄(651209),电话:0878-4831286,E-mail:37178306@qq.com。
