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为了节镍研究了新的低温钢从。断裂机理观点出发,通过降碳减少钢中珠光体量;加入铝和铌形成AIN和Nb(CN)而细化钢的铁素体晶粒;并且降低钢中的固溶含氮量;
In order to section nickel studied the new low temperature steel from. Fracture mechanism point of view, through reducing carbon to reduce the amount of pearlite in steel; adding aluminum and niobium to form AIN and Nb (CN) to refine the ferrite grains of steel; and reducing the dissolved nitrogen in steel;