| 1000MPa级高强钢显微组织与析出相分析 |
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| 引用本文： | 肖丰强. 1000MPa级高强钢显微组织与析出相分析[J]. 宽厚板, 2014, 0(3): 6-9 |
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| 作者姓名： | 肖丰强 |
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| 作者单位： | 济南钢铁集团有限公司 |
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| 摘 要： | 利用金相显微镜、扫描电子显微镜及透射电子显微镜等分析手段,对1 000 MPa级高强钢的显微组织与析出相进行了研究。结果表明,试验钢的显微组织为板条状贝氏体和板条状马氏体,并存在少量残余奥氏体。大量析出相分布在基体上,平均尺寸30～60 nm,组织强化、析出强化、位错强化是高强钢主要的强化方式。
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| 关 键 词： | 高强钢 显微组织 析出相 |
Analysis on Microstructure and Precipitation Phase of 1 000 MPa Grade High Strength Steel |
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| Xiao Fengqiang. Analysis on Microstructure and Precipitation Phase of 1 000 MPa Grade High Strength Steel[J]. Wide and Heavy Plate, 2014, 0(3): 6-9 |
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| Authors: | Xiao Fengqiang |
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| Affiliation: | Xiao Fengqiang (Technology Center of Jinan Iron and Steel Co. Ltd) |
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| Abstract: | The article studies the microstructure and precipitation phase of 1 000 MPa grade high strength steel by using optical metallographic microscope（OM）,scanning electron microscope（SEM）and transmission electron mi-croscope（TEM）. The results indicate that the microstructure consists of lath bainite,lath martensite and a little resid-ual austensite. A mass of precipitates distribute in bainite matrix with average size from 30 to 60 nm. Microstructure strengthening,precipitation strengthening and dislocation strengthening are the main strengthening mechanisms. |
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| Keywords: | High strength steel Microstructure Precipitation phase |
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