Al元素对低Mo耐火钢力学性能的影响  

Effect of Al on Mechanical Properties of Low-Mo Fire-resistant Steel

作　　者：万荣春[1] 全春典 WAN Rongchun;QUAN Chundian(Bohai Shipbuilding Vocational College,Xingcheng 125105,China;Huangpu Wenchong Shipbuilding Company Limited,Guangzhou 510715,China)

机构地区：[1]渤海船舶职业学院,辽宁兴城125105 [2]中船黄埔文冲船舶有限公司,广东广州510715

出　　处：《船舶职业教育》2023年第3期46-49,共4页Shipbuilding Vocational Education

基　　金：渤海船舶职业学院2022年度立项课题。

摘　　要：通过对一系列低Mo耐火钢进行热力学计算,设计两种Al含量不同的低Mo(含量约0.30%)耐火钢,并观察微观组织和测试力学性能。热力学计算结果表明:通过添加Al元素可以部分代替Mo元素对耐火钢性能的影响,并确定低Mo耐火钢中Mo的合理含量在0.3%左右,Mn的合理含量在1%左右。此外,试验结果表明通过添加Al元素可以增加耐火钢组织中贝氏体含量,细化晶粒。Based on the thermodynamic calculation of a series of low-Mo fire-resistant steels,two kinds of low-Mo(about 0.30%)fire-resistant steels with different Al contents are designed,and the microstructure and mechanical properties are observed.Thermodynamic calculation shows that Al can partly replace the effect of Mo on the properties of the fire-resistant steel.It can be determined that the reasonable content of Mo in low-Mo fire-resistant is about 0.3%,and the reasonable content of Mn is about 1%.In addition,the test results show that the addition of Al element can increase the bainite content in the microstructure of the fire-resistant steels and refine the grain.

关 键 词：AL 低Mo 耐火钢 

分 类 号：TG142.1[一般工业技术—材料科学与工程]