2008•Rejiagong gongyiRequires access
Effect of Heat Treatment on Microstructure and Properties of Fe-B-C Alloy
Liu Saiye, Yue Chen, Shizhong Wei, Zhang Guoshang
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Abstract
The microstructure and properties of Fe-B-C alloy with different quenching temperature and mediator were studied through different heat treatment.The results show that the cast structure of Fe-B-C alloy is composed of ferrite,pearlite and eutectic boride.After heat treatment,the most parts of matrix change into martensite,the eutectic boride transforms from network into less interconnection,and isolated particles appear,long and thin feeler is inactive.The results also show that the hardness and impact toughness of Fe-B-C alloy increase rapidly after heat treatment.The peak of hardness appeares at 900 ℃water quenching + 250 ℃tempering;the best impact toughness occurres in 950 ℃oil quenching + 250 ℃tempering;considering hardness,impact toughness and wear resistance,the combination property of Fe-B-C alloy is best at 950 ℃ water quenching.