烧结温度对Ni16Cr9Al多孔材料性能的影响  

Effect of Sintering Temperature on Ni16Cr9Al Porous Material Performance

作　　者：康新婷[1] 迟煜頔[1] 刘海彦[1] 沈磊[1] 王辉[1] 葛渊[1] 

机构地区：[1]西北有色金属研究院金属多孔材料国家重点实验室,陕西西安710016

出　　处：《稀有金属材料与工程》2013年第11期2380-2383,共4页Rare Metal Materials and Engineering

摘　　要：以粒度小于25μm的Ni16Cr9Al预合金粉末为原料,采用模压成形、真空烧结的方法制备了Ni16Cr9Al多孔材料,研究了烧结温度对Ni16Cr9Al多孔材料性能的影响。结果表明:Ni16Cr9Al粉末压坯在烧结过程中由于烧结颈的形成、长大,体积发生收缩,随着温度的升高,烧结体的孔隙度和孔径减小,强度提高,1130℃具有良好的三维孔隙结构,高于1150℃,孔隙减少,材料逐渐致密。Using Ni16Cr9Al pre-alloy powder with 〈25 μm particles size as starting material,Nil6Cr9Al porous material was prepared by pressing and vacuum sintering.The effect of sintering temperature on Nil6Cr9Al porous material performance was researched.The results show that the shrinkage of the volume of Ni16Cr9Al green body will occur owing to forming and growing up of sintering-neck during the sinter.The porosity,the maximum and average pore sizes decrease and the shear strength of the Nil6Cr9A1 porous materials increases with the increase of the sintering temperature.The Nil6Cr9Al porous material possesses a favorable three-dimensional meshwork after sintering at 1130 ℃.The porosity quantity decreases and the density of the Nil 6Cr9Al material gradually increases after sintering over 1150 ℃.

关 键 词：Ni16Cr9Al 多孔材料 真空烧结 性能 

分 类 号：TB383.4[一般工业技术—材料科学与工程]