王扬亚,赵程.奥氏体不锈钢低温渗碳硬化处理后的化学亮化处理[J].表面技术,2016,45(1):106-110.
WANG Yang-ya,ZHAO Cheng.Chemical Brightening Treatment of Austenitic Stainless Steel after Low-temperature Plasma Carburizing[J].Surface Technology,2016,45(1):106-110
奥氏体不锈钢低温渗碳硬化处理后的化学亮化处理
Chemical Brightening Treatment of Austenitic Stainless Steel after Low-temperature Plasma Carburizing
投稿时间:2015-10-08  修订日期:2016-01-20
DOI:10.16490/j.cnki.issn.1001-3660.2016.01.017
中文关键词:  316L 奥氏体不锈钢  低温离子渗碳  黑膜  化学亮化处理  耐蚀性能
英文关键词:316L austenite stainless steel  low-temperature plasma carburizing  black film  chemical brightening treatment  corrosion resistance
基金项目:
作者单位
王扬亚 青岛科技大学 机电工程学院, 山东 青岛 266061 
赵程 青岛科技大学 机电工程学院, 山东 青岛 266061 
AuthorInstitution
WANG Yang-ya Qingdao University of Science and Technology, Qingdao 266061, China 
ZHAO Cheng Qingdao University of Science and Technology, Qingdao 266061, China 
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中文摘要:
      目的 研究一种化学方法对经过低温离子渗碳后的奥氏体不锈钢表面进行亮化处理。 方法 采用酸洗(草酸 180 ~200 g/ L,硫脲 10 ~15 g/ L,OP-10 10 ~15 mL/ L,温度为 70 ℃,时间为 3 min)、除积炭(邻二氯苯 610 g/ L,水 30 g/ L,氢氧化钠 20 g/ L,油酸 100 g/ L,甲酚 240 g/ L,处理温度为 70 ℃ ,在超声波中清洗 120 min)、碱洗(氢氧化钠 110 g/ L,碳酸钠 110 g/ L,高锰酸钾 50 g/ L,溶液温度为 70 ℃ ,在超声波中清洗 30 min。)、再酸洗(草酸 180 ~200 g/ L,硫脲 10 ~15 g/ L,OP-10 10 ~ 15 mL/ L,溶液温度为 70 ℃ ,在超声波中清洗 1 min)的化学处理过程,对低温离子渗碳硬化处理后的 316 L 奥氏体不锈钢表面进行亮化处理,并对亮化处理前后硬化层的组织结构、厚度、硬度及耐蚀性能进行比较。 结果 硬化处理后的不锈钢经过化学亮化处理过程,就可以比较彻底地去除硬化层表面的黑膜,恢复不锈钢的本色。 结论 化学表面亮化处理后,不锈钢渗硬化层的损失量比较小,去除黑膜后的不锈钢表面表现出很好的耐蚀性能。
英文摘要:
      Objective To study the method of chemical brightening treatment for austenitic stainless steel after low-temperature plasma carburizing. Methods This paper adopted chemical treatment method to brighten the surface of the carburized 316L austenite stainless steel. The chemical treatments included acid-washing(180 ~200 g/ L of oxalic acid,10 ~15 g/ L of thiourea, 10 ~ 15 mL/ L of OP-10,the temperature was 70 ℃, the time was 3 minutes), removing accumulated carbon (610 g/ L of orthodichlorobezene,30 g/ L of water,20 g/ L of sodium hydroxide,100 g/ L of oleic acid, 240 g/ L of cresol, the temperature was 70 ℃, ultrosonic cleaning for 120 minutes), alkali-washing (110 g/ L of sodium hydroxide,110 g/ L of sodium carbonate,50 g/ L of potassium permanganate, the temperature was 70 ℃, ultrosonic cleaning for 30 minutes) and acid-washing (180 ~200 g/ L of oxalic acid,10 ~ 15 g/ L of thiourea, 10 ~ 15 mL/ L of OP-10, the temperature was 70 ℃, ultrosonic cleaning for 1 minute). Austenite stainless steel after low-temperature plasma surface hardening was brightened by means of chemical method. The thickness, microstructure, microhardness and corrosion resistance of the samples before and after brightening were compared. Results Experimental results showed that the chemical brightening could restore its original color of the hardened stainless steel. Conclusion The thickness and surface hardness of the hardened layer decreased slightly after chemical brightening. However, the corrosion-resistant property was much better than that of the sample before chemical brightening.
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