| MIAO Yue-qiong,GAO Yu-xin,ZHENG Shao-mei.Double Active Screen Plasma Nitriding of 304 Stainless Steel[J],45(4):95-98,115 |
| Double Active Screen Plasma Nitriding of 304 Stainless Steel |
| Received:March 15, 2016 Revised:April 20, 2016 |
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| DOI：10.16490/j.cnki.issn.1001-3660.2016.04.016 |
| KeyWord:304 stainless steel plasma nitriding double active screen hardness corrosion resistance |
| Author | Institution |
| MIAO Yue-qiong |
College of Mechanical Engineering, Taizhou University, Taizhou , China |
| GAO Yu-xin |
College of Mechanical Engineering, Taizhou University, Taizhou , China |
| ZHENG Shao-mei |
College of Mechanical Engineering, Qingdao Technological University, Qingdao , China |
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| Abstract: |
| Objective To explore the feasibility and thermal effectiveness of double active screen plasma nitriding (DASPN) of 304 stain steel. Methods Nitrided layers were prepared on 304 stainless steel substrate by low terperature DASPN technique and common direct-current plasma nitriding (DCPN) technique, respectively. The morphology, phase structure, hardness and corrosion properties of the nitrided layers were comparatively analyzed. Results The nitrided layer produced by DASPN technique was more homogenous and compact compared with that produced by DCPN. It was a single S-phase layer and the hardness of the layer was 763HV0. 25. Moreover, the layer had a better corrosion resistance than that produced by DCPN. Conclusion The thermal effectiveness of 304 steel by DASPN technique was better than that of DCPN treatment, which is probably applicable to commercial process. |
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