深冷处理对T8A钢组织和力学性能的影响
Cailiao Rechuli Xuebao/Transactions of Materials and Heat Treatment（2010）
Abstract
对经不同深冷工艺处理后的TSA钢进行了组织观察、力学性能检测和摩擦磨损试验.结果表明:深冷处理可提高T8A钢的硬度;淬火+深冷处理+180℃×8 h回火处理后,T8A钢的冲击韧性有所降低;深冷处理可明显提高T8A钢耐磨性并降低钢中残留奥氏体含量,其中深冷处理6 h后效果最为显著,其相对磨损率下降了49.8%、残留奥氏体含量降幅达到39.1%.
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Key words
Deep cryogenic treatment (DCT),Hardness,Impact toughness,Retained austenite,Wear resistance
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