| 奥氏体化温度对30Cr3SiMnNiWMo钢组织性能的影响 |
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| 引用本文： | 路妍,王军华,苏杰,杨卓越,谢刚.奥氏体化温度对30Cr3SiMnNiWMo钢组织性能的影响[J].特殊钢,2011,32(4):60-63. |
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| 作者姓名： | 路妍 王军华 苏杰 杨卓越 谢刚 |
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| 作者单位： | 1昆明理工大学冶金与能源工程学院，昆明650093；
2钢铁研究总院结构材料研究所，北京100081；
3河南省工业学校机电系，郑州450053 |
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| 摘 要： | 试验研究了860～980℃奥氏体化处理对30Cr3SiMnNiWMo钢(%:0.28C、0.74Mn、1.04Si、2.70Cr、1.15Ni、0.45Mo、1.04W、0.07V、0.05Al)组织以及260℃回火后钢的力学性能的影响。结果表明,30Cr3SiMnNiWMo钢860～920℃淬火组织中存在大量M6C碳化物,对回火钢的韧性不利;950℃淬火后,钢中M6C碳化物基本溶解,原奥氏体晶粒开始长大,回火后钢的强度降低;30Cr3SiMnNiWMo钢经920℃1h油淬+260℃2h回火可以获得具有少量残余奥氏体和未溶碳化物的板条马氏体组织,并具有优良的强韧性(Rm=1680 MPa, Rp0.2=1330 MPa,A=13%, Z=58.5%, AKU=85 J) 。
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| 关 键 词： | 30Cr3SiMnNiWMo钢 奥氏体化温度 微观组织 力学性能 |
| 收稿时间： | 2011-02-09 |
Effect of Austenizing Temperature on Structure and Mechanical Properties of Steel 30Cr3SiMnNiWMo |
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| Lu Yan,Wang Junhua,Su Jie,Yang Zhouyue,Xie Gang.Effect of Austenizing Temperature on Structure and Mechanical Properties of Steel 30Cr3SiMnNiWMo[J].Special Steel,2011,32(4):60-63. |
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| Authors: | Lu Yan Wang Junhua Su Jie Yang Zhouyue Xie Gang |
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| Affiliation: | 1 Faculty of Metallurgical and Energy Resources Engineering, Kunming University of Science and Technology, Kunming 650093.
2 Institute for Structural Materials, Central Iron and Steel Research Institute, Beijing 100081 ；
3 Faculty of Electrical Engineering, Henan Province Industry School, Zhengzhou 450053 |
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| Abstract: | The effect of austenitic treatment at 860～980℃on microstructure of steel 30CrSiMnNiWMo（%: 0.28C,0.74Mn,1.04Si,2.70Cr,1.15Ni,0.45Mo,1.04W,0.07V,0.05Al）and mechanical properties of steel tempered at 260℃has been studied.Results show that there are a lot of carbide M6C in microstructure of steel 30Cr3SiMnNiWMo quenched at 860～920℃led to slightly decrease toughness of tempered steel,and after quenched at 950℃,the carbides in steel are basically dissolved and the original austenite grains of steel beginning coarsen led to decrease strength of tempered steel;with oil quenched at 920℃for 1 h+tempered at 260℃for 2 h,the steel 30Cr3SiMnNiWMo has lath martensite microstructure with minor residual austenite and un-dissolved carbides,so it has excellent strength and toughness i.e.UTS-1 680 MPa,YS-1 330 MPa,elongation-13%,RA-58.3%and impact energy-85 J. |
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| Keywords: | 30Cr3SiMnNiWMo Steel Austenizing Temperature Microstructure Mechanical Properties |
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