【摘要】 研究了烧结316L不锈钢真空烧结后的渗氮强化处理工艺,结果表明,通过控制渗氮气体压力和渗氮温度可以精确地控制烧结316L的渗氮含量,材料的氮含量随氮气压力和温度的升高而增加,保温时间对氮含量的影响不大,渗氮处理能有效提高材料的抗弯强度和硬度,但降低了其塑性和耐腐蚀能力,ω(N)=0.4％的试样具有较好的综合性能。更多还原

【Abstract】 Nitriding process of P/M 316L sintered in vacuum has been studied. The resultsshow that the nitrogen content in the sintered 316L is increased with an increase of nitrogenpressure and nitriding temperature, and little increased with heat preservation time. The ni-trogen content of the treated 316L can be controlled accurately by controlling the nitrogengas pressure and nitriding temperature. Bending strength and hardness of the nitrided 316Lmaterial are improved, but its plasticity and corrosion resistance become slightly poor. Thesamples containing 0. 41%N show good comprehensive properties.更多还原