一种W-Ni-Al-Fe系易碎钨合金材料的研究  

Fragile Tungsten Alloys Made of W-Ni-Al-Fe

作　　者：袁慎坡[1] 李树奎[2] 宋修纲[3] 程兴旺[2] 吴复尧[2] 

机构地区：[1]北京大学口腔医学院口腔医院,北京100081 [2]北京理工大学,北京100081 [3]北方工具有限公司,黑龙江牡丹江157000

出　　处：《材料工程》2007年第9期26-29,共4页Journal of Materials Engineering

摘　　要：研究了一种W-Ni-Fe-Al系易碎穿甲弹芯材料,该材料采用冷等静压成型和液相烧结工艺制备。经金相检验和拉伸断口扫描电镜分析,该材料在烧结过程中可形成Al2O3脆性壳体分布于黏结相中,起到降低抗拉强度、提高弹芯破碎性的作用。性能测试表明,该材料与相同钨含量的93W-Ni-Fe合金相比,动态压缩强度相当,而静拉伸强度下降了约200MPa,延伸率下降了约20%。A fragile penetrator material made of W-Ni-Al-Fe was studied. The material was made by CIP and sintering process. Al2 O3 was found in the matrix of the materials through metallographic testing and SEM analysis, which reduced the tensile strength. All of this improved the fragmentation of penetrator. The dynamic compressive strength of the new type materials was the same as 93W-Ni-Fe alloys, but the tensile strength reduced about 200MPa and the extension rates reduced 20%.

关 键 词：易碎钨合金 W-Ni-Al-Fe 弹芯 

分 类 号：TG14[一般工业技术—材料科学与工程]