高级检索
刘娅, 张朝晖, 何杨宇, 贾晓彤, 王强, 冯向向, 程兴旺. 热轧温度对Ti-Zr-V-Nb-Si合金微观组织和力学性能的影响[J]. 真空科学与技术学报. DOI: 10.13922/j.cnki.cjvst.202402011
引用本文: 刘娅, 张朝晖, 何杨宇, 贾晓彤, 王强, 冯向向, 程兴旺. 热轧温度对Ti-Zr-V-Nb-Si合金微观组织和力学性能的影响[J]. 真空科学与技术学报. DOI: 10.13922/j.cnki.cjvst.202402011
LIU Ya, ZHANG Zhaohui, HE Yangyu, JIA Xiaotong, WANG Qiang, FENG Xiangxiang, CHENG Xingwang. Effect of Hot Rolling Temperature on Microstructure and Mechanical Properties of Ti-Zr-V-Nb-Si Alloy[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY. DOI: 10.13922/j.cnki.cjvst.202402011
Citation: LIU Ya, ZHANG Zhaohui, HE Yangyu, JIA Xiaotong, WANG Qiang, FENG Xiangxiang, CHENG Xingwang. Effect of Hot Rolling Temperature on Microstructure and Mechanical Properties of Ti-Zr-V-Nb-Si Alloy[J]. CHINESE JOURNAL OF VACUUM SCIENCE AND TECHNOLOGY. DOI: 10.13922/j.cnki.cjvst.202402011

热轧温度对Ti-Zr-V-Nb-Si合金微观组织和力学性能的影响

Effect of Hot Rolling Temperature on Microstructure and Mechanical Properties of Ti-Zr-V-Nb-Si Alloy

  • 摘要: 采用真空电弧熔炼制备了密度仅为6.1 g/cm3的(TiZrV0.5Nb0.5)99.4Si0.6轻质高熵合金,并分别选取900、1000和1100℃的热轧温度对合金进行轧制改性处理,探究了不同热轧温度对微观组织与力学性能的影响。结果表明:真空电弧熔炼制备的合金经轧制后强度和延伸率均得到提高,在900℃下热轧的合金具有的1164.5 MPa的拉伸断裂强度以及14.7%的延伸率,性能提升最佳,较铸态合金分别提高了13.9%和950%。随着热轧温度的进一步升高,合金平均晶粒尺寸变大、力学性能不断下降。900℃下热轧后合金优异的综合力学性能是位错增殖、固溶强化、第二相强化和晶粒细化四种强化机制共同作用的结果。

     

    Abstract: Light weight high entropy alloy (TiZrV0.5Nb0.5)99.4Si0.6 with a density of 6.1 g/cm3 was prepared by vacuum arc melting. The effects of different hot-rolling temperatures (900, 1000 and 1100℃) on the microstructure and mechanical properties were investigated. The results show that after rolling, the strength and elongation are both improved. The tensile strength and elongation of the alloy with a rolling temperature of 900℃ reached 1164.5 MPa and 14.7%, which was best and can surpass 13.9% and 950% than that of the as-cast alloy respectively. However, with the further increase of hot-rolling temperature, the grain size increases and the mechanical properties decline. The excellent mechanical properties of the alloy with a rolling temperature of 900℃ are the result of dislocation, solid solution, second phase and grain refinement.

     

/

返回文章
返回