Y含量对Ti52-xAl48Yx合金微观组织及力学性能的影响
Effects of Y Content on Microstructure and Mechanical Properties of Ti52-xAl48Yx Alloy
樊江磊 1周棹 1魏泽新 1吴深 1周向葵 1李莹 1王艳1
作者信息
- 1. 郑州轻工业大学机电工程学院,郑州 450002
- 折叠
摘要
采用真空感应方法制备了不同Y含量的Ti52-xAl48Yx(x=0～1.0,摩尔分数)合金,分析了Y含量对Ti52-xAl48Yx合金组织与力学性能的影响.结果表明,添加Y可显著细化合金晶粒,且产生Al3Y相和Y2O3相,随着Y含量增加,合金晶粒尺寸逐渐减小,硬度不断增加.当Y含量为1.0%时,合金的硬度(HV)最高,达到372.随着Y含量增加,Ti52-xAl48Yx合金的抗压强度先上升后降低,当Y含量为0.3%时抗压强度最大,为2230 MPa,相较原始合金增长了32%.
Abstract
Ti52-xAl48Yx(x=0～1.0)alloy,was fabricated by vacuum induction method,and effects of Y content on microstructure and mechanical properties of Ti52-xAl48Yx alloy were investigated.The results indicate that Y addition can significantly refine the grain,while Al3Y and Y2O3 phase are generated in the alloy.With the increase of Y content,the grain size is decreased,and hardness is increased,which reaches the maximum of 372 HV at 1.0%.The compres-sive strength is increased and then decreased with the increase of Y content,reaching the maximum of 2230 MPa at 0.3%,which is 32%higher than that of base alloy.
关键词
TiAl合金/Y合金化/微观组织/力学性能Key words
TiAl Alloy/Y-alloying/Microstructure/Mechanical Properties引用本文复制引用
基金项目
河南省自然科学基金资助项目(222300420584)
出版年
2024
NETL
NSTL
万方数据