气体氮化;气体渗氮
Vacuum gas nitriding ( VGN) technology was adopted and evaluated for well casing to against the corrosion in Changqing oilfield.
针对长庆油田油井套管腐蚀问题,采用并评价了真空渗氮工艺。
Gas Nitriding Treatment of Piston Ring Made of Martensitic Stainless Steel
马氏体不锈钢活塞环的气体氮化
Nitrided layers with golden yellow color were fabricated by laser gas nitriding.
激光气体氮化在基体上成功制得表面呈金黄色的氮化层。
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