粉末冶金技术2017，Vol.35Issue(3)：171-177,7.DOI:10.19591/j.cnki.cn11-1974/tf.2017.03.002
La2O3对微波烧结Cu20Fe80合金组织性能的影响
Effect of La2O3 addition on the microstructures and properties of Cu20Fe80 alloy prepared by microwave sintering
董中奇 1付俊薇 1尹素花 1王杨2
作者信息
- 1. 河北工业职业技术学院金属材料工程系,石家庄 050091
- 2. 河北科技大学材料科学与工程学院,石家庄 050000
- 折叠
摘要
Abstract
Cu20Fe80 alloys were prepared by mechanical alloying and cold pressing microwave sintering, the effect of La2O3 addition on microstructures and properties of the Cu20Fe80 alloy prepared by microwave sintering was investigated. The microstructures and phase composition of the Cu20Fe80 alloy were analyzed by scanning electron microscope (SEM) and X-ray diffractometer (XRD). The density and hardness of the Cu20Fe80 alloys were measured by Rockwell hardometer. The results show that, the Cu20Fe80 alloy powders present the flake layered structure, the powders are refined and the mechanical alloying is enhanced with increasing La2O3 content. The microstructures of cold pressed compaction of Cu20Fe80 alloy are lamellar, the density of cold pressed compaction increases and the formability is improved with the increase of La2O3 content. The microwave sintered microstructures of Cu20Fe80 alloy show the lamellar structure, with the increase of La2O3 content, the voids of the microwave sintered Cu20Fe80 alloy reduces first then increases, and the density and the hardness increase first and then decrease; in conclusion, the best La2O3 content is 0.2% by mass.关键词
铁铜合金/粒度/微波烧结/机械合金化Key words
Cu-Fe alloy/grain size/microwave sintering/mechanical alloying分类
矿业与冶金引用本文复制引用
董中奇,付俊薇,尹素花,王杨..La2O3对微波烧结Cu20Fe80合金组织性能的影响[J].粉末冶金技术,2017,35(3):171-177,7.
