利用扫描电镜、电子探针、显微硬度计、CS电化学工作站研究AISI316奥氏体不锈钢经低温气体渗碳处理后渗碳层显微组织及力学特性的变化。结果表明，在450，470，500℃温度条件下，在AISI316奥氏体不锈钢表面获得10~33μm的硬化层，随温度的不同，渗层深度、硬度梯度、耐蚀性能呈现不同的变化规律。
Microstructure and mechanical properties of low?temperature gas carburized layer of AISI316 austenitic stainless steel were investigated by means of scanning electron microscopy(SEM),micro hardness tester,CS electrochemical workstation. The experimental results indicate that the thickness of hardened layer is within the range of 10 to 33 μm,when AISI316 austenitic stainless steel is carburized at 450,470,500 ℃. With the variation of carburizing temperature,different case depth,hardness gradient and corrosion resistance are observed in the steel.
参考文献
| [1] | Sedriks A J.ASM Handbook[M].ASM International,2003:697-702. |
| [2] | 刘伟,赵程,窦百香.奥氏体不锈钢离子渗碳后的腐蚀行为[J].材料保护,2009(07):22-24. |
| [3] | 闫志琴,刘燕萍.不锈钢离子渗碳耐磨性的研究[J].表面技术,2007(01):31-32. |
| [4] | N. Agarwal;H. Kahn;A. Avishai .Enhanced fatigue resistance in 316L austenitic stainless steel due to low-temperature paraequilibrium carburization[J].Acta materialia,2007(16):5572-5580. |
| [5] | Y. Cao;F. Ernst;G. M. Michal .Colossal carbon supersaturation in austenitic stainless steels carburized at low temperature[J].Acta materialia,2003(14):4171-4181. |
| [6] | 吴金金,张良界,潘邻,吕忠洲,杨闽红.奥氏体不锈钢低温渗碳技术的研究现状及应用前景[J].热处理技术与装备,2009(04):22-26,35. |
| [7] | 卢金斌,马丽.不锈钢等离子渗碳工艺及渗层组织和性能的研究[J].材料保护,2007(02):35-37. |
| [8] | Frank Ernst;Cao Y;Miachal G et al.Carbide precipitation in austenitic stainless steel carburized at low temperature[J].Ac-ta Materialia,2006,55:1895-1906. |
| [9] | Ceschinia L;Minak G .Fatigue behaviour of low temperature carburised AISI 316L austenitic stainless steel[J].Surface & Coatings Technology,2008(9):1778-1784. |
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