STS 304 鋼의 摩滅의 대하여 溫度 및 濃度의 影響에 관한 硏究 = A Study on Influence of the Temperature and Concentration on wear of STS 304 Steel

국문 초록 (Abstract)

부식환경 중에서의 ??磨滅特性을 明確하게 하기 위하여 오스테나이트스테인레스綱(STS 304)을 사용하여 蒸溜水 및 NaCl水溶液中에서 NaCl濃度, 雰園氣溫度 및 미끄럼距離에 따른 腐?磨滅量을 측정하였다. 또한 이들 雰園氣變化에 의한 摩擦表面層, 接觸 表面層下部의 變質層組織 및 龜裝發生과 傳심擧動을 조사하기 위하여 실험을 하였다.
NaCl의 低濃度域에서의 臨界 미끄럼距離는 一定溫度이상에서 급격히 증가하며 이 臨界溫度는 高農度일수록 低溫으로 되고, 輕磨滅에서 比腐?磨滅率 Wsc는 NaCl농도 0.1%에서 最大値를 가진다. 扶植生成感은 潤滑作用 및 表面硏磨效果가 있고 接觸表面에서의 生成物의 生成率과 용액중으로의 批除率이 臨界미끄럼距離에 영향을 주며, 생성율이 높고 批除率이 낮은 조건에서는 輕磨滅狀態가 된다.

다국어 초록 (Multilingual Abstract)

The present study was undertaken to investigate the corrosive wear characteristics of the austenitic stainless steel(STS 304). The carried out wnder different experimental conditions using the wear test device, which was made in laboratory, and in which the annular surfaces of wear testing specimens were rubbing in NaCl aqueous solution by varying the temperature, NaCl concentration and sliding distance etc. The critical sliding distance in the lower concentration domain of NaCl rapidiy increased above constant temerature and the critical temerature became low with increasing NaCl concentration. It was found that the specific wear rate reach a maximum at about 0.l %, wt.% NaCl concentration. The corrosion product Fe(OH)₃contributed lubrication and polishing effect. The generated rate of corrosive producth and the eliminated rate to the solution from specimen on the surface was found to exert a significant effect on the oritical sliding distance and that the mild wear state still continues under the condition of high generated rate and low eliminated rate of the corrosion product.

목차 (Table of Contents)

• Ⅰ. 序論
• Ⅱ. 實驗裝置 및 方法
• 2·1. 試驗片 및 實驗裝置
• 2·2 實驗方法
• Ⅲ. 實驗結果 및 考察
• 3·1. 摩滅進行曲線의 NaCl 濃度特性
• 3·2. 摩滅에 미치는 溫度 및 濃度?歷의 影響
• Ⅳ. 結論
• 引用符號