采用光学和扫描电子显微镜过对X80大变形管线钢在拉伸和冲击载荷下的变形和断裂过程的实验观察,研究了X80大变形管线钢的变形和断裂行为.结果表明:对于由贝氏体+铁素体组成的双相大变形管线钢,在变形过程中,塑性变形优先在铁素体中进行,随着塑性变形量的增加,双相组织的形态逐渐沿作用力方向呈现明显的位向分布.双相组织中裂纹的产生有3种典型方式,即夹杂物形核、相界面形核以及铁素体或贝氏体基体形核.裂纹的扩展与所受的应力状态有关,在较低应力状态下时,裂纹主要通过铁素体扩展;只有在较高应力状态下,裂纹才穿越贝氏体.在实验观察和分析基础上建立了贝氏体+铁素体大变形管线钢的变形和断裂模型.
参考文献
| [1] | Okats M;Shinmiya T;Ishikawa N.Development of high strength linepipe with excellent deformability[A].ASME,2005 |
| [2] | 高惠临.管道工程面临的挑战与管线钢的发展趋势[J].焊管,2010(10):5-18. |
| [3] | Andreas L;Jens S;Martin P.Investigation of the stress-strain behavior of large-diameter X100 linepipe in view of strain-based design requirements[A].ASME,2008 |
| [4] | Arslan H;Hamilton J;Lele S.Strain demand estimation for pipelines in challenging arctic and seismically active regions[A].ASME,2010 |
| [5] | Seo D H;Yoo J Y;Song W H.Development of X 100 linepipe steel with high deformation capacity[A].ASME,2008 |
| [6] | 邓伟,高秀华,秦小梅,赵德文,杜林秀,王国栋.X80管线钢的冲击断裂行为[J].金属学报,2010(05):533-540. |
| [7] | Szewczyk A F;Gurland J .A Study of the deformation and fracture of a dual-phase steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1982,13(10):1821-1826. |
| [8] | B. Gardey;S. Bouvier;B. Bacroix .Correlation between the Macroscopic Behavior and the Microstructural Evolutions during Large Plastic Deformation of a Dual-Phase Steel[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2005(11):2937-2945. |
| [9] | Hara T;Terada Y;Shinohara Y.Metallurgical design and development of high deformable X100 line pipe steels suitable for strain-based design[A].ASME,2008 |
| [10] | Jeong W C;Kim C H .Effects of transformed ferrite growth on the tensile fracture characteristics of a dual-phase steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1988,19(02):309-317. |
| [11] | 徐佐仁;刘效东 .低碳微合金双相钢拉伸断裂过程的动态观察[J].上海交通大学学报,1988,22(05):12-19. |
| [12] | 徐永波;刘民治 .珠光体组织的形变、裂纹形核与扩展微观过程的动态研究[J].金属学报,1982,18(01):58-63. |
| [13] | P. Movahed;S. Kolahgar;S.P.H. Marashi;M. Pouranvari;N. Parvin .The effect of intercritical heat treatment temperature on the tensile properties and work hardening behavior of ferrite–martensite dual phase steel sheets[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2009(1/2):1-6. |
| [14] | I.D. CHOI;D.M. BRUCE;S.J. KIM .Deformation Behavior of Low Carbon TRIP Sheet Steels at High Strain Rates[J].ISIJ International,2002(12):1483-1489. |
| [15] | Avtar R;Jha B K;Dwivedi V S .Effect of transformed ferrite on fracture behaviors of a dual-phase steel[J].Chemi Mater Sci,1986,5(07):725-727. |
| [16] | 陈黄浦 .粒状贝氏体的形变与断裂特征[J].金属学报,1992,28(05):226-229. |
| [17] | 马鸣图;汪德根;吴宝榕 .双相钢断裂特性的研究[J].金属学报,1983,19(04):332-337. |
| [18] | A. Dalloz;J. Besson;A.-F. Gourgues-Lorenzon .Effect of shear cutting on ductility of a dual phase steel[J].Engineering Fracture Mechanics,2009(10):1411-1424. |
| [19] | Kim, J.H.;Sung, J.H.;Piao, K.;Wagoner, R.H. .The shear fracture of dual-phase steel[J].International Journal of Plasticity,2011(10):1658-1676. |
| [20] | Marion Calcagnotto;Yoshitaka Adachi;Dirk Ponge .Deformation and fracture mechanisms in fine- and ultrafine-grained ferrite/martensite dual-phase steels and the effect of aging[J].Acta materialia,2011(2):658-670. |
| [21] | K. Kocatepe;M. Cerah;M. Erdogan .The tensile fracture behaviour of intercritically annealed and quenched + tempered ferritic ductile iron with dual matrix structure[J].Materials & Design,2007(1):172-181. |
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