中文摘要：

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850MPa，屈服强度为505MPa，延伸率为44．5％，断面收缩率为47．5％，冲击功为44J．材料经1100℃固溶处理1h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68J．材料强度和耐蚀性优于316L不锈钢．

英文摘要：

Nickel-free stainless steel powders contained nitrogen were prepared by gas atomization, formed by hot isostatic pressing （HIP）, and treated by solution. The HIPed materials have excellent strength, plasticity, and toughness; their tensile strength, yield strength, elongation, area reduction and impact energy are 850 MPa, 505 MPa, 44. 5% , 47.5% , and 44 J, respectively. After solu- tion treatment at 1 100 ℃ for 1 h the plasticity and toughness improve obviously; the elongation, area reduction, and impact energy is 50. 0% , 55.5% , and 68J, respectively. Experimental data show that the prepared nickel-free stainless steel 17Cr10Mn2MoN has bet- ter strength and corrosion resistance than 316L stainless steel.