摘要
通过真空熔炼、冷变形、固溶处理制备得到β钛合金。利用六面顶压机对β钛合金进行高压时效处理,研究高压时效的参数对β钛合金显微组织、显微硬度、弹性模量的影响,并对其进行时效动力学分析。结果发现,制备得到了等轴的β钛合金,时效压力、时间对显微组织的影响显著。常压时效析出相很少,高压下析出的α相和马氏体相很多。高压时效的压力、时间对显微硬度、弹性模量的影响显著。随着压力的增大,显微硬度先减小后增大,弹性模量增大;随着时间的延长,显微硬度呈先增大后减小趋势,弹性模量呈先增大后减小再增大的趋势。
titanium alloy was prepared by vacuum melting,cold deformation,and solution treatment.A six-anvil high press was used to perform high-pressure aging treatment on β-titanium alloy,and the effects of high-pressure aging parameters on the microstructure,microhardness and elastic modulus of β titanium alloy were studied,and the aging kinetics were analyzed.It is found that the effects of aging pressure and time on microstructure,hardness and elastic modulus are significant.With the increase of pressure and time,the precipitation of α phase and martensite phase increases.The pressure and time of high-pressure aging have significant effects on the modulus of microhardness and elasticity.As the pressure increases,the microhardness first decreases and then increases,and the elastic modulus increases;as time increases,Vickers hardness first increases and then decreases,and elastic modulus increases first,then decreases and then increases.
作者
石李祯
傅莉
林建国
张德闯
Shi Lizhen;Fu Li;Lin Jianguo;Zhang Dechuang(School of Materials Science and Engineering,Xiangtan University,Xiangtan 411105,China)
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2022年第6期2090-2096,共7页
Rare Metal Materials and Engineering
基金
国家自然科学基金(51971190,11872053)。
关键词
高压时效
Β钛合金
马氏体相
弹性模量
硬度
high pressure aging
β titanium alloy
martensite phase
elastic modulus
hardness
