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结构钢用微量硼合金化是提高淬透性和机械性能有效又经济的方法,不用附加昂贵的合金元素。 前苏联阿捷尔拜疆工业大学研究了加硼从0到0.01％,得到一种经济调质钢40XTP钢(0.42～0.44％C,0.35～0.37％Si,0.60～0.63％Mn,1.2～1.4％Cr,0.03％Ti,0.02％Al,0.06％S,0.06％P)以及硼对该钢组织和性能的影响,并与40XH钢的性能进行了比较。为了使硼不与氮结合,钢内加入少量的钛。 40XTP钢在50kg感应炉内熔炼,以精制铁(ЖР-03)作炉料。脱氧后立即加铬,除渣后用锰和硅预
Structural boron micro-alloying is to improve the hardenability and mechanical properties of effective and economical method, without additional expensive alloying elements. The former Soviet Union Azerbaijan Institute of Technology studied the addition of boron from 0 to 0.01% to obtain an economically tempered steel 40XTP steel (0.42 to 0.44% C, 0.35 to 0.37% Si, 0.60 to 0.63% Mn, 1.2 to 1.4 % Cr, 0.03% Ti, 0.02% Al, 0.06% S, 0.06% P) and boron on the microstructure and properties of the steel were compared with that of 40XH steel. To make boron non-binding to nitrogen, add a small amount of titanium to the steel. 40XTP steel is melted in a 50kg induction furnace and refined iron (ЖР-03) is used as a charge. Add chromium immediately after deoxidation, with manganese and silicon after slag removal