渗碳对Fe_3Al基合金力学性能的影响  

Effect of carburing on the mechanical properties of Fe_3Al-based alloys

作　　者：柯见洪[1] 涂江平[2] 孟亮 刘茂森[2] 

机构地区：[1]温州师范学院物理系,浙江温州325003 [2]浙江大学材料科学与工程学系,浙江杭州310027

出　　处：《浙江大学学报（自然科学版）》2000年第2期211-216,共6页

摘　　要：通过研究 F e3A l基合金经不同时间渗碳后其室温力学性能和高温力学性能的变化 ,发现碳的渗入使合金的强度与延伸率都有所下降 ,同时 F e3A l合金的有序转变温度 Tc升高 .C以固溶形式进入F e3A l合金 ,当 C渗入量超过其固溶度时 。The mechanical properties of Fe\-3Al\|based alloys at room temperature and high temperature were studied after carburizing upon different time.It is discovered that carburation decreases the strength and ductility and increases the order\|transition temperature of the alloys.Carbon infiltrates into Fe\-3Al alloy by the form of solid solution and when carbon infiltration amount is over, its solid solubility,carbides will precipitate at the grain boundaries,thus decreases the strength and ductility of the alloy.

关 键 词：FE3AL合金 渗碳 力学性能 铁铝合金 强度 塑性 

分 类 号：TG146.21[一般工业技术—材料科学与工程]