含硼粉末冶金316LN不锈钢组织与性能的研究  

Study on the Microstructure and Properties of Boron-Containing Powder Metallurgy 316LN Stainless Steel

作　　者：王昌东 于永亮 WANG Changdong;YU Yongliang(Shandong Luyin New Material Technology Co.,Ltd.,Jinan 271104,China)

机构地区：[1]山东鲁银新材料科技有限公司,山东济南271104

出　　处：《山东冶金》2024年第4期51-53,共3页Shandong Metallurgy

摘　　要：研究了硼元素对316LN不锈钢的组织与力学性能的影响。结果表明,硼元素的添加大幅度提高了不锈钢的力学性能,硼元素可与不锈钢中的铬钼合金元素反应生成硼化物硬质相,通过固溶强化显著提高了不锈钢的强度和硬度。随着硼含量增加,316LN不锈钢的硬度增大。当硼含量0.4%时,烧结态和热处理态的316LN不锈钢的硬度最大,分别为82.3 HRB和97.8 HRB;烧结态和热处理态试样抗拉强度达到最大值,分别为542 MPa和639 MPa。The effect of boron on the microstructure and mechanical properties of 316LN stainless steel was studied.The results show that the addition of boron can greatly improve the mechanical properties of stainless steel,boron can react with chromium molybdenum alloy element in stainless steel to form boride hard phase,and the strength and hardness of stainless steel can be significantly improved by solid solution strengthening.With the increase of boron content,the hardness of 316LN stainless steel increases.When the boron content is 0.4%,the hardness of sintered and heat-treated 316LN stainless steel is the highest,which is 82.3 HRB and 97.8 HRB respectively.The tensile strength of sintered and heat-treated specimens reached the maximum value,which were 542 MPa and 639 MPa respectively.

关 键 词：316LN不锈钢 硼 组织 力学性能 

分 类 号：TG142.1[一般工业技术—材料科学与工程]