温度对焊接热模拟X80管线钢断裂韧性的影响

通过试验和3D有限元模拟相结合的方法分析了焊接热模拟X80管线钢在不同温度（-90,-60,-30和0℃）下的断裂韧度.文中选取标准三点弯曲试样在不同温度下进行断裂韧度测试,同时对测试件进行三维有限元实体建模与分析计算.结果表明,X80管线钢的断裂韧性随温度减低显著减小,并使其倾向于脆性断裂.材料在不同温度下的真实应力-应变曲线行为从光滑拉伸到断裂力学试样具有良好的可传递性,温度对材料的硬化行为没有明显影响,有限元计算的结果表明,应用该方法可以准确地计算X80钢焊接热影响区不同温度下的CTOD值.     

Effect of radiation on the properties of high-strenght martensitic steels

A comparative study of the radiation resistance of high-strength low-carbonh martensitic steels 03Kh11N10M2, 03Kh12N3D, and 05Kh14N5DM is presented from the standpoint of their possible use in reactors. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 1, pp. 25–28, January, 1999.     

Chromium — manganese — nickel steels for steam superheaters

Conclusion The steel of the following chemical composition is recommended for commercial trials: 0.05–0.1% C, 0.3–0.6% Si, 17–19% Mn, 13–15% Cr, 4–6% Ni, 0.5–0.7% Mo, 0.005% B 0.025% S and P.Eastern Branch of the All-Union Power Engineering Scientific Research Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 7, pp. 59–62, July, 1968.     

Effect of warm rolling on the martensitic transformation and properties of austenitic steels

Conclusion The optimal preliminary rolling conditions are 300°C with =45%, which produces fairly high strength and ductile characteristics.S. M. Kirov Ural Polytechnical Institute. Translated from Metallovedenie i Termicheskaya Obrabotka Metallov, No. 12, pp. 42–44, December, 1974.     

Effect of manganese and niobium on the properties of low-alloy steels

The strength and ductility characteristics, toughness parameters, and structure of low-alloy steels after thermomechanical treatment are studied. Analysis of the properties of steels with various manganese-to-niobium ratios is performed. An optimum chemical composition for sheet steel subjected to thermomechanical treatment is suggested.