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近年来,新日本制铁公司钢铁研究所采用不同热处理方法得到不同组织对裂纹应力腐蚀(ＳＳＣ)的影响并取得进展。试验材成分(%):0.01Ｃ0.20Ｓｉ0.50Ｍｎ0.02Ｐ0.003Ｓ11Ｃｒ0.7Ｃｕ6.0Ｎｉ2.6Ｍｏ0.008Ｎ。以此成分生产的钢管从焊缝区采取试样,在950℃30ｍｉｎ后空冷,再Ｎ处理(称
In recent years, the new Nippon Steel Research Institute of Iron and Steel using different heat treatment methods to obtain different organizations on the impact of stress corrosion cracking (SSC) and made progress. Test material composition (%): 0.01C0.20Si0.50Mn0.02P0.00S11Cr0.7Cu6.0Ni2.6Mo0.008N. Steel pipes produced from this component were taken from the weld zone and air-cooled at 950 ° C for 30 minutes before being treated with N