摘要
通过对Ｆｅ３Ａｌ基合金的电阻率、热膨胀系数的测定及抗氧化性能、高温力学性能的研究发现，Ｆｅ３Ａｌ基合金的室温电阻率高于Ｎｉ８０Ｃｒ２０、０Ｃｒ２５Ａｌ５合金。当温度低于９００℃时，其抗氧化性能与二种对比合金相当，温度大于９００℃时，其抗氧化性能明显优于对比合金。高温断裂强度高于０Ｃｒ２５Ａｌ５合金，而与Ｎｉ８０Ｃｒ２０合金相当。Ｆｅ３Ａｌ合金是一种比较理想的电热体材料。
The properties of Fe 3Al based intermetallic compound,consisting of electrical resistivity,thermal expansion coefficient oxidation resistance and mechanical are compared to Ni80Cr20 and 0Cr25Al5 alloys The results indicate that Fe 3Al based alloys have the highest electrical resistivity and ultimate strength among the alloys and also possess obviously better oxidation resistance than the other two alloys when the temperature is over 900 ℃ It is preliminary concluded that Fe 3Al based alloys are good electrical heating materials
出处
《钢铁》
CAS
CSCD
北大核心
1999年第1期48-52,共5页
Iron and Steel
