基本信息:
- 专利标题： 一种奥氏体不锈钢海洋环境耐腐蚀的表面改性方法及使用设备
- 专利标题（英）：Method for surface modification for improving corrosion resistance of austenitic stainless steel in marine environment and device using the same
- 申请号：CN201711170355.5 申请日：2017-11-22
- 公开(公告)号：CN107761044A 公开(公告)日：2018-03-06
- 发明人： 李杨 , 朱宜杰 , 邱剑勋 , 张磊 , 叶倩文
- 申请人： 烟台大学
- 申请人地址： 山东省烟台市莱山区清泉路30号
- 专利权人： 烟台大学
- 当前专利权人： 烟台大学
- 当前专利权人地址： 山东省烟台市莱山区清泉路30号
- 代理机构： 北京中济纬天专利代理有限公司
- 代理人： 马国冉
- 主分类号： C23C8/38
- IPC分类号： C23C8/38
The invention discloses a method for surface modification for improving corrosion resistance of austenitic stainless steel in a marine environment and a device using the same. The method comprises cleaning a material to be treated, putting the cleaned material to be treated into a pulse ion nitriding furnace with an auxiliary cathode device connected to a power supply cathode, carrying out vacuumpumping on the pulse ion nitriding furnace, feeding ammonia gas until pressure of 450pa when the pressure is 10pa, heating the material to be treated to a first preset temperature, keeping the first preset temperature for first preset time, adjusting a second preset temperature, feeding oxygen gas and ammonia gas to the material to be treated, keeping the second preset temperature for second preset time and cooling the sample. The method can improve the corrosion resistance and the surface hardness of austenitic stainless steel under the condition of the corrosion of the marine environment.