铸造Fe-Cr-Ni-Al双相耐热合金的研制  

Development of Casting Dual-Phase Heat Resistant Alloy Fe-Cr-Ni-Al

作　　者：王执福[1] 王海涛[1] 

机构地区：[1]山东工业大学,济南250061

出　　处：《特殊钢》1998年第3期12-14,共3页Special Steel

摘　　要：采用普通铸造方法研制了双相（铁素体＋奥氏体）25Cr－10Ni－3Al铁基耐热合金。试验合金在1050～1300℃高温区，短时抗拉强度随温度升高呈线性下降，韧、塑性于1150℃达到峰值，1250℃试验合金氧化增重速率稳定在0．2g／m2·h左右。The dual-phase (ferrite + austenite) heat resistant iron base alloy 25Cr-10Ni-3Al manufactured by normal casting procedure was developed. The instantaneous tensile strength of alloy tested decreasedlinearly with increasing the temperature from 1050℃ to 1300℃, and the top toughness and ductility were obtained at 1150℃. The rate of weight gain of alloy at 1250t stabilized approximately at 0. 2g/m2.h.

关 键 词：双相钢 耐热合金 耐热钢 铸造 

分 类 号：TG142.73[一般工业技术—材料科学与工程]