| 非调质状态下HG80钢的组织和性能研究 |
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| 引用本文： | 盛光敏,彭侃,高长益.非调质状态下HG80钢的组织和性能研究[J].钢铁,1999,34(3):53-57,62. |
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| 作者姓名： | 盛光敏 彭侃 高长益 |
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| 作者单位： | 1. 重庆大学
2. 武汉钢铁(集团)公司 |
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| 摘 要： | 研究了热轧态，回火态及不同冷却速度下ＨＧ８０钢的显微组织及力学性能，并讨论了ＨＧ８０钢在非调质状态下的强韧化机制。结果表明，ＨＧ８０钢非调质状态下的组织由铁素体基体和孪晶马氏体／残余奥氏体岛状相所组成；熟轧态主要是粒状组织，韧性偏低；随轧后冷却速度的提高，粒状贝氏体量增加，组织细化，钢的强性改善。
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| 关 键 词： | 非调质钢 粒状贝氏体 韧性 |
INVESTIGATION OF MICROSTRUCTURES AND MECHANICAL PROPERTIES OF HG80 STEEL AS NON-QUENCHING AND TEMPERING TREATED0 |
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| SHENG Guangmin,PENG Kan,GAO Changyi.INVESTIGATION OF MICROSTRUCTURES AND MECHANICAL PROPERTIES OF HG80 STEEL AS NON-QUENCHING AND TEMPERING TREATED0[J].Iron & Steel,1999,34(3):53-57,62. |
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| Authors: | SHENG Guangmin PENG Kan GAO Changyi |
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| Affiliation: | SHENG GuangminPENG Kan GAO Changyi
(Chongqing University) (Wuhan Iron and Steel (Group) Co) |
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| Abstract: | In this paper the
microstructures and mechanical properties of HG80 steel are investigated as hot rolled
tempered and cooled at different cooling rates,and the mechanisms of strengthening and
toughening of HG80 steel as nonquenching and tempering treated are also discussedThe test
results show that the microstructure of HG80 steel as nonquenching and tempering treated
consists of ferrite matrix and twin martensite/residual austenite islandsThe microstructure as
hot rolled is characterized mainly by granular structure of lower toughnessWith the
increasement of cooling rate after rolling,the volume fraction of granular bainite increases and
the microstructure is refined,and as the result the strength and toughness of HG80 steel is
improved |
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| Keywords: | non quenching and tempering steel granular bainite toughness |
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