研究不同显微组织的X70管线钢的室温蠕变现象和室温蠕变对常温拉伸性能的影响.结果表明,在各种保载应力水平下,不同显微组织的X70管线钢都存在室温蠕变现象.当保载应力高于屈服强度时,室温蠕变变形更加明显.在保载应力与屈服强度之比相同的情况下,不同热处理状态的X70管线钢的室温蠕变量差别不大.同时发现当保载应力高于屈服强度时,室温蠕变后材料屈服点的流变应力显著提高.
参考文献
| [1] | Wang SH.;Chen WX.;Zhang YG. .Room temperature creep and strain-rate-dependent stress-strain behavior of pipeline steels[J].Journal of Materials Science,2001(8):1931-1938. |
| [2] | Zhenbo Zhao;Derek O. Northwood;Cheng Liu;Yunxu Liu .A new method for improving the resistance of high strength steel wires to room temperature creep and low cycle fatigue[J].Journal of Materials Processing Technology,1999(0):569-573. |
| [3] | Oehlert A;Atrens A .Room temperature creep of high strength steels[J].Acta Metallurgica Et Materialia,1994,42(05):1493-1508. |
| [4] | Alden T H .Theory of mobile dislocation density:application to the deformation of 304 stainless steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1987,18(05):51. |
| [5] | Alden T H .Theory of plastic and viscous deformation[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1987,18(05):811-825. |
| [6] | Cheng Liu;Ping Liu;Zhenbo Zhhao .Room temperature creep of a high strength steel[J].Materials & Design,2001(4):325-328. |
| [7] | Wang S H;Chen W X .A study on the pre-cyclic-load-induced burst of creep deformation of a pipeline steel under subsequent static load[J].Materials Science and Engineering,2001,A301:147-153. |
| [8] | 郑磊 等.宝钢管线钢的开发与应用[J].钢铁,2002,37:417-421. |
| [9] | 韩顺昌.针状铁素体的物理冶金学（待续）[J].材料开发与应用,1995(05):2. |
| [10] | 陈永武."西气东输"展现中国管道工业辉煌[J].天然气工业,2003(04):1-4. |
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