采用热模拟技术、显微分析方法和力学性能测试等手段,研究了X100管线钢在延迟加速冷却工艺条件下的组织与性能的变化规律.结果表明,通过初始冷却温度为620℃的延迟加速冷却,试验钢X100的显微组织为复相(BF+GF),具有优良的强韧特性.在延迟加速冷却过程中,随初始冷却温度的降低,BF的体积分数减小,导致材料强韧性降低.
The influence of delay accelerated cooling process in a X100 pipeline steel is investigated by means of thermal simulation technique,microscopic analysis method and mechanical property testing.The results show that when the original cooling temperature is 620℃to delay accelerated cooling,the microstrueture of X100 trial steel is mainly made up of bainitie ferrit(BF)and granular ferrit(GF)which can bring excellent strength and toughness.In the delay accelerated cooling process,with the decrease of original cooling temperature,the strength and toughness of material decrease because of bainitic ferrit(BF)volume percent decreasing.
参考文献
| [1] | 高惠临.管线钢-组织性能焊接行为[M].西安:陕西科学技术出版社,1995:10. |
| [2] | 王路兵,任毅,张鹏程,武会宾,唐获.高级别管线钢X100的试验研究[J].钢铁,2008(01):80-84. |
| [3] | 冯耀荣;高惠临;霍春勇.管线钢显微组织的分析和鉴别[M].西安:陕西科学技术出版社,2008:1. |
| [4] | Garrett R P;Xu S;Lin J et al.A model for predicting austenite to bainite phase transformation in producing dual phases teels[J].International Journal of Machine Tools and Manufacture,2004,44:831. |
| [5] | Mohammad Reza Akbarpour;A. Ekrami .Effect of ferrite volume fraction on work hardening behavior of high bainite dual phase (DP) steels[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,2008(1/2):306-310. |
| [6] | Mazinani M;Poole W J .Effect of martensite plasticity on the deformation behavior of a low-carbon dual-phase steel[J].Metall Mater Transs A,2007,38:328. |
| [7] | 李鹤林;郭生武;冯耀荣.高强度微合金管线钢显微组织分析与鉴别图谱[M].北京:石油工业出版社,2001:3. |
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