工程科学学报2017，Vol.39Issue(3)：426-431,6.DOI:10.13374/j.issn2095-9389.2017.03.015
MA-SPS制备超细晶Ti-8Mo-3Fe合金的摩擦磨损性能
Friction and wear properties of ultrafine grain Ti-8 Mo-3 Fe alloys fabricated by MA-SPS
摘要
Abstract
The friction and wear properties of ultrafine grain Ti-8Mo-3Fe alloy fabricated by mechanical alloying (MA) and sub-sequent spark plasma sintering ( SPS) were investigated in SBF simulated body fluid. It was compared with those of as-SPSed micron size grain Ti-8Mo-3Fe alloy and as-casted Ti and TC4 alloy. The results show that ultrafine grain Ti-8Mo-3Fe alloy with high density and uniform microstructure can be fabricated by MA- SPS, and the alloy mainly consists of β-Ti phase and a small amount of α-Ti phase. The average grain size is 1. 5μm, and the microhardness is 448 HV. In the same wear condition, the wear degree of ultrafine grain Ti-8Mo-3Fe alloy is significantly lower than those of micro-crystalline Ti-8Mo-3Fe, as-casted Ti, and TC4 alloy, so it has the lowest wear volume and stable friction coefficient. Ultrafine grain Ti-8Mo-3Fe alloy is mainly characterized by abrasive wear, but micro-crystalline Ti-8Mo-3Fe, as-casted Ti and TC4 alloy are characterized by abrasive and adhesion wear.关键词
钛合金/机械合金化/材料摩擦磨损/磨损机制Key words
titanium alloys/mechanical alloying/friction and wear of materials/wear mechanisms分类
矿业与冶金引用本文复制引用
王涛,路新,徐伟,章林,曲选辉..MA-SPS制备超细晶Ti-8Mo-3Fe合金的摩擦磨损性能[J].工程科学学报,2017,39(3):426-431,6.基金项目
北京市自然科学基金资助项目(2163053) （2163053）
新金属材料国家重点实验室开放基金资助项目(2012Z-10) （2012Z-10）
