| 大规格82B钢盘条的冬季时效行为 |
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| 引用本文： | 王海宾,贾建平,张朝磊,卢伟永,王建忠,李娜.大规格82B钢盘条的冬季时效行为[J].金属热处理,2021,46(4):95-99. |
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| 作者姓名： | 王海宾 贾建平 张朝磊 卢伟永 王建忠 李娜 |
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| 作者单位： | 1.河钢集团宣钢公司, 河北 宣化 075100; 2.北京科技大学 材料科学与工程学院, 北京 100083 |
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| 基金项目： | 中央高校基本科研业务费专项资金(FRF-NP-19-002) |
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| 摘 要： | 研究了ø12.5 mm规格82B钢盘条在北方冬季－15~－23 ℃条件下自然时效0~30 d后的力学性能变化情况,并进行了不同的人工时效试验。结果表明:82B钢盘条的抗拉强度与时效没有明显的关系;自然时效0~10 d后其断面收缩率呈明显上升趋势,10~30 d断面收缩率趋于稳定;盘条下线后立即在200 ℃保温2 h进行人工时效,得到的力学性能与自然时效10 d后的力学性能较为接近,因此对82B钢盘条可采用人工时效处理的方法预测自然时效后的力学性能。
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| 关 键 词： | 82B钢盘条 时效 断面收缩率 断口 |
| 收稿时间： | 2020-10-05 |
Aging behavior of largegauge 82B steel hot-rolled wire in winter |
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| Wang Haibin,Jia Jianping,Zhang Chaolei,Lu Weiyong,Wang Jianzhong,Li Na.Aging behavior of largegauge 82B steel hot-rolled wire in winter[J].Heat Treatment of Metals,2021,46(4):95-99. |
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| Authors: | Wang Haibin Jia Jianping Zhang Chaolei Lu Weiyong Wang Jianzhong Li Na |
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| Affiliation: | 1. HBIS Group Xuansteel Company, Xuanhua Hebei 075100, China; 2. School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China |
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| Abstract: | Mechanical properties of ø12.5 mm 82B steel hot-rolled wire aged for 0 to 30 d were studied under the condition of -15 ℃ to -23 ℃ in North China in winter, and different artificial aging experiments were also comparatively carried out. The results show that there is no obvious relationship between tensile strength of the 82B steel wire and aging method. The percentage reduction of area has a significant increase after natural aged for 0 d to 10 d, and tends to be stable during 10 d to 30 d. The mechanical properties obtained by artificial aging at 200 ℃ for 2 h were close to those obtained after natural aging treatment for 10 d. Therefore, the mechanical properties after natural aging can be predicted by artificial aging treatment. |
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| Keywords: | 82B steel hot-rolled wire aging percentage reduction of area fracture |
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