| EAF-VOD-VAR和VIM-VAR冶炼工艺对G50超高强度钢韧性的影响 |
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| 引用本文： | 夏志新,杨卓越,李保成,陈嘉砚. EAF-VOD-VAR和VIM-VAR冶炼工艺对G50超高强度钢韧性的影响[J]. 特殊钢, 2008, 29(1): 60-61 |
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| 作者姓名： | 夏志新 杨卓越 李保成 陈嘉砚 |
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| 作者单位： | 1 中北大学材料科学与工程学院，太原030051;2 中国钢研科技集团公司结构材料研究所，北京100081 |
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| 摘 要： | 研究了真空感应熔炼+真空自耗重熔(VIM-VAR)和电弧炉+真空-氧脱碳+真空自耗重熔(EAF- VOD-VAR)法两种工艺冶炼的超高强度钢G50%:0.28～0.29C、1.88～1.98Si、4.45～4.49Ni、1.04～1.05Cr、0.57～0.61Mo、0.031～0.034Nb)的夹杂物和机械性能。结果表明,EAF-VOD-VAR法冶炼的G50钢夹杂物级别低于VIM-VAR法冶炼的G50钢的夹杂物级别;EAF-VOD-VAR法冶炼的1350钢的韧性(AKU2 86～88 J,KIC130～132 MPa·m1/2)明显高于VIM-VAR法冶炼的G50钢的韧性(AKU270～74 J,KIC 112～118 MPa·m1/2)。
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| 关 键 词： | 超高强度钢G50 VIM-VAR EAF-VOD-VAR 夹杂物 韧性 |
| 收稿时间： | 2007-08-31 |
| 修稿时间： | 2007-08-31 |
Effect of EAF-VOD-VAR and VIM-VAR Metallurgical Process on Toughness of Ultra-high Strength Steel G50 |
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| Xia Zhixin,Yang Zhuoyue,Li Baocheng,Chen Jiayan. Effect of EAF-VOD-VAR and VIM-VAR Metallurgical Process on Toughness of Ultra-high Strength Steel G50[J]. Special Steel, 2008, 29(1): 60-61 |
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| Authors: | Xia Zhixin Yang Zhuoyue Li Baocheng Chen Jiayan |
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| Affiliation: | 1 College of Materials Science and Engincering, Zhongbei University,Taiyuan 030051;2 Institute for Science Materals,China lron & Steel Research Institute Croup, Beijing 100081 |
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| Abstract: | Inclusion and mechanical properties of ultra-high strength steel G50(0.28～0.29C,1.88~1.98Si,4.45 ~4.49Ni,1.04～1.05Gr,0.57～0.61Mo,0.031~0.034Nb)melied by two process VIM-VAR and EAF-VOD-VAR have been studied. Results showed that the inclusion rating units of steel G50 melted by EAF-VOD-VAR process were low- er han that melied by VIM-VAR proccss,and the oughmess of steel G50(AKu286~88J,KIc 130～132 MPa . m1/2)was obviously higher than that(AKu270~74J,KIc112~118 MPa . m1/2)of steei G50 melted by VIM-VAR process. |
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| Keywords: | Ultra-high Strength Steel GS0 VIM-VAR EAF-VOD-VAR Inclusion Toughness |
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