冷轧变形对00Cr12Ni9Mo4Cu3Ti0.9Al0.4马氏体时效不锈钢力学性能和耐蚀性能的影响
Shanghai Metals（2018）
Abstract
制备了一种00Cr12Ni9Mo4Cu3Ti0.9Al0.4马氏体时效不锈钢,经冷轧变形和时效处理后,其硬度可达55 HRC,抗拉强度达2310 MPa.冷轧并时效的试样的点蚀电位高于固溶态试样.随着冷轧变形率从63%增加到85%,钢的点蚀电位略有提高,从370 mV增加到了410 mV.经85%冷轧变形和440 ℃时效4 h后,该马氏体时效不锈钢在模拟海水3.5% NaCl溶液中的腐蚀失重速率为0.27×10-3g·m-2·h-1,且有大量ε-Cu和Ni3(Ti,Al)相析出,具有较高的强度和良好的耐蚀性能.
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