Report copyright - 中碳鉻鉬鋼 AISI 4140 之雷射表面硬化處理 Laser Surface ...aca.cust.edu.tw/pub/journal1/VOL/VOL.50/中碳鉻鉬鋼...行拉伸試驗、破斷面觀察、橫截面微硬度量測以及金相組織觀察等。研究結果顯
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