Mn对W-40Cu合金伪半固态触变挤压铸件性能的影响  

Effects of Mn on Properties of W-40Cu Alloy Parts Prepared by Thixo-die-forging in Pseudo-semi-solid State

作　　者：纪兴华[1] 程远胜[2] 尚翠霞[1] 许春平[1] 陈文[3] 李国平 

机构地区：[1]莱芜职业技术学院 [2]哈尔滨工业大学材料科学与工程学院 [3]莱芜市粉末冶金先进制造重点实验室

出　　处：《特种铸造及有色合金》2013年第4期299-302,共4页Special Casting & Nonferrous Alloys

基　　金：国家自然科学基金资助项目(51175018)

摘　　要：研究了不同含量的Mn对W-40Cu合金伪半固态触变挤压铸件性能的影响。结果表明,Mn的加入可以提高W-40Cu合金伪半固态触变挤压铸件的抗弯强度。随着Mn含量的增加,抗弯强度变大,但增大趋势变缓,Mn的添加可以提高制件抗弯强度10%以上。适量Mn的添加有利于提高挤压铸件的致密度和导电性能,但Mn含量超过1.5%时,致密度和导电性能均下降。Effects of Mn contents on physical properties and mechanical properties of W-40Cu alloy parts prepared by thixo-die-forging in pseudo-semi-solid state were investigated. The results show that the bending strength of W-40Cu alloy parts prepared is improved with Mn addition. With the increase of Mn content, bending strength of the thixoforged parts is increased with slowing tendency, and the bending strength is raised by more than 10%. Effects of Mn on density and conductive properties of W-40Cu alloy parts prepared by thixo-die-forging in pseudo-semi-solid state are similar, where the density and conductive properties are increased with proper Mn addition, however, they are decreased with Mn content more than 1.5%.

关 键 词：Cu-W合金 伪半固态触变挤压铸造 力学性能 导电性能 

分 类 号：TG376[金属学及工艺—金属压力加工] TG145[一般工业技术—材料科学与工程]