研究了热轧态超低碳马氏体钢的室温拉伸性能,利用金相显微镜观察了其微观组织,EBSD及X射线衍射仪测量了晶粒尺寸和位错密度,探讨了超低碳马氏体钢高强化的内在机理并对各强化项进行了具体计算.结果表明:试验钢终轧温度为750 ℃时得到最高的强度,计算得到的位错强化增量为530 MPa,晶粒细化增量为275 MPa,固溶强化增量为86 MPa.
参考文献
| [1] | Smith D W;Hehemann R F .Influence of structural parameters on the yield strengh of tempered martensite and lower bainite[J].Journal of the Iron and Steel Institute,1971,209:478-481. |
| [2] | 俞德刚;谈育煦.钢的组织强度学[M].上海:上海科学技术出版社,1993 |
| [3] | 王春芳 .低合金马氏体钢强韧性组织控制单元的研究[D].钢铁研究总院,2008. |
| [4] | Norstrom L A .On the yield strength of quenched low-carbon lath martensite[J].Scandinavian Journal of Metallurgy,1976,5(04):159-165. |
| [5] | Ansell G S;Arrott A .The strengthening mechanism of ferrous martensite[J].Transactions of the Metallurgical Society of AIME,1963,227(10):1080-1082. |
| [6] | Speich G R;Leslie W C .Tempering of steel[J].Metallurgical and Materials Transactions B:Process Metallurgy and Materials Processing Science,1972,3(05):1043-1054. |
| [7] | 哈宽富.金属力学性质的微观理论[M].北京:科学出版社,1983 |
| [8] | George Krauss .Martensite in steel: strength and structure[J].Materials Science & Engineering, A. Structural Materials: Properties, Misrostructure and Processing,1999(0):40-57. |
| [9] | Gladman T.The phy8ical metallurgy of microalloyed steels[M].London:The InsLitute of Materials,1997 |
| [10] | T. Gladman .Precipitation hardening in metals[J].Materials Science and Technology: MST: A publication of the Institute of Metals,1999(1):30-36. |
| [11] | Hitoshi ASAHI;Takuya HARA;Eiji TSURU.Development of Ultra-high-strengrh Linepipe,X120[J].Tokyo:Nippon Steel Technical Report,2004(90):82-87. |
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