液相烧结钨合金快冷增韧的俄歇分析  

AUGER ANALYSIS FOR RAPIDLY COOLING TOUGHENING OF LIQUID PHASE SINTERING 95W-Ni-Fe

作　　者：齐芸馨[1] 王改莲[2] 季文源[3] 马诗熙[4] 

机构地区：[1]电子部第四十六所 [2]北京科技大学 [3]天津理工学院 [4]天津硬质合金研究所

出　　处：《兵器材料科学与工程》2000年第4期47-50,共4页Ordnance Material Science and Engineering

基　　金：天津市自然科学基金

摘　　要：用扫描俄歇探针 ( SAM)结合工艺试验研究了烧结态和经真空热处理的 95W-Ni-Fe合金冷却速度对其性能的影响。结果表明 ,磷是引起该合金界面脆化的重要因素 ;快冷可以明显抑制磷的界面偏聚 ,有效提高该合金的延性和韧性。The effect of cooling rate on mechanical properties of 95W Ni Fe alloy in sintered and vacuum heat treated states has been researched by using Scanning Auger Microprobe (SAM) combined with technological tests.The result shows that phosphor is an important factor that induces the embrittlement of interfaces of the alloy,and that rapid cooling can apparently restrain the interfacial segregation of phosphor and effectively increase the elongation and toughness of the alloy.

关 键 词：钨合金 磷 界面偏聚 扫描俄歇探针 

分 类 号：TG146.4+11[一般工业技术—材料科学与工程]