采用气雾化法制备含氮无镍不锈钢粉末,利用热等静压成形并对材料进行固溶处理.热等静压后,材料具有良好的强度、塑性及韧性,抗拉强度为850 MPa,屈服强度为505 MPa,延伸率为44.5%,断面收缩率为47.5%,冲击功为44 J.材料经1 100℃固溶处理1 h后,塑性和韧性得到进一步提高,延伸率为50.0%,断面收缩率为55.5%,冲击为68 J.材料强度和耐蚀性优于316L不锈钢. The nitrogen-containing nickel-free stainless steel powder was prepared by gas atomization and was hot isostatic pressed to form a solid solution treatment.The hot isostatic pressing, the material has good strength, plasticity and toughness, the tensile strength of 850 MPa, The yield strength was 505 MPa, the elongation was 44.5%, the reduction of area was 47.5% and the impact energy was 44 J. The plasticity and toughness of the material were further improved after the solution treatment at 1 100 ℃ for 1 h, the elongation was 50.0% Shrinkage of 55.5% area, the impact of 68 J. Material strength and corrosion resistance is better than 316L stainless steel.