不同冷加工量和退火处理对316L不锈钢磨耗行为之影响-YOKE.PDF

不同冷加工量和退火處理對316L 不銹鋼磨耗行為之影響 Effects of Cold Working and Annealing on Wear Behavior of 316L Stainless Steel 林欣儀* 鐘楷 黃冠豪 許正勳 大同大學材料工程學系 由於 316L 不銹鋼無法藉由一般熱處理改善其硬度，因此本研究先將 316L 不銹鋼基材進行固溶處理 o o (1050 C/持溫 30min/水淬 ) ，再施以不同的冷加工量搭配不同次數的退火處理(溫度 850 C/持溫 1min./水 淬) ，然後利用XRD 、FE-SEM 進行結構分析和組織觀察、微硬度試驗機測量硬度及進行磨耗試驗，以探討 不同冷加工與退火製程參數對316L 不銹鋼顯微結構、硬度及耐磨耗性之影響。 實驗結果顯示：當 冷作應變量愈大 ，微結構之麻田散鐵含量 越高，所獲得的硬度 亦越高，其耐磨耗 性也愈佳。其中又以重複2 次搭配處理(75%冷加工量+850oC-1min退火可獲最低摩擦係數與最小的重量損) 失。 關 鍵詞 : 316L 不銹鋼 、冷加工、退火、耐磨耗 Abstract 316L stainless steel cannot be improved its hardness via any general heat treatment. In this study, 316L o stainless steel was used as experimental material for solution treatment at 1050 C for 30 min and then was o cold-worked along with annealing at 850 C for 1min. Structure analysis and observation were performed by using X-ray diffractometer and field emission scanning electron microscopy. In addition, Vickers-hardness tests and wear tests were conducted for exploring the effect of cold working and annealing treatments on microstructure and hardness, and wear resistance of 316L stainless steel. The experimental results showed that the content of martensite in microstructure increased with increasing the cold working amount, resulting in an improvement in both the hardness and wear resistance. In particular, th