粉未冶金高铝锌基合金性能的研究  

Study on Properties of High Aluminum Zn-Based Alloy Fabricated by Powder Metallurgy

作　　者：卜金纬[1] 黄根良[1] 

机构地区：[1]江苏大学材料科学与工程学院

出　　处：《热加工工艺》2007年第16期22-24,共3页Hot Working Technology

摘　　要：采用金属粉末、空气中液相烧结的方法制备了粉末冶金高铝锌基ZA27合金。结果表明,在410～435℃烧结2h时,425℃时烧结体的摩擦系数最小,耐磨性最好,随着烧结时间的增加,摩擦系数减小,耐磨性提高,在425℃烧结4h、5h时,烧结体的耐磨性与铸造ZA27合金相比有显著提高。The powder metallurgy of high Aluminum Zn-based alloy ZA27 was prepared by means of pure metal powder and liquid phase sintering in air.The results show that the friction coefficient of P/M alloy sintered at 425 ℃ is minimum and its wear resistance is best when sintered at 410-435℃ for 2 h.With the increase of sintering time, its friction coefficient reduces and wear resistance improves. Compared with ZA27 alloy as-cast, the wear resistance of P/M alloy sintered at 425℃for 4 h or 5 h improves obviously.

关 键 词：粉末冶金 高铝锌基合金 液相烧结 

分 类 号：TG146.2[一般工业技术—材料科学与工程] TF124[金属学及工艺—金属材料]