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無鎳不銹鋼17Cr10Mn2MoN的制備與性能

Preparation and properties of nickel-free stainless steel 17Cr10Mn2MoN

  • 摘要: 采用氣霧化法制備含氮無鎳不銹鋼粉末,利用熱等靜壓成形并對材料進行固溶處理.熱等靜壓后,材料具有良好的強度、塑性及韌性,抗拉強度為850 MPa,屈服強度為505 MPa,延伸率為44.5%,斷面收縮率為47.5%,沖擊功為44 J.材料經1 100℃固溶處理1 h后,塑性和韌性得到進一步提高,延伸率為50.0%,斷面收縮率為55.5%,沖擊為68 J.材料強度和耐蝕性優于316L不銹鋼.

     

    Abstract: 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 solution 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 68 J, respectively. Experimental data show that the prepared nickel-free stainless steel 17Cr10Mn2MoN has better strength and corrosion resistance than 316L stainless steel.

     

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