[1]冯路路,吴开明,鲁修宇,等.桥梁缆索用超高强度钢丝的研究现状及发展趋势[J].中国材料进展,2020,(05):395-403.[doi:10.7502/j.issn.1674-3962.201904017]
　FENG Lulu,WU Kaiming,LU Xiuyu,et al.Research Status and Development Tendency of Ultra-High Strength Steel Wire for Bridge Cables[J].MATERIALS CHINA,2020,(05):395-403.[doi:10.7502/j.issn.1674-3962.201904017]
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桥梁缆索用超高强度钢丝的研究现状及发展趋势()
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中国材料进展[ISSN:1674-3962/CN:61-1473/TG]

卷:
期数:
2020年第05期
页码:
395-403
栏目:
出版日期:
2020-05-30

文章信息/Info

Title:
Research Status and Development Tendency of Ultra-High Strength Steel Wire for Bridge Cables
文章编号:
1674-3962(2020)05-0395-09
作者:
冯路路1; 2; 4; 吴开明1; 鲁修宇3; 乔文玮4
（1. 武汉科技大学 国际钢铁研究院，湖北 武汉 430081）（2. 荆楚理工学院机械工程学院，湖北 荆门 448000）（3. 武汉钢铁（集团）研究院，湖北 武汉 430080）（4. 江苏华能电缆股份有限公司，江苏 高邮 225613）
Author(s):
FENG Lulu1; 2; 4;  WU Kaiming1;  LU Xiuyu3;  QIAO Wenwei4
(1. International Research Institute for Steel Technology, Wuhan University of Science and Technology, Wuhan 430081, China) (2. School of Mechanical Engineering, Jingchu University of Technology, Jingmen 448000, China) (3. Research Institute of Wuhan Iron & Steel Group, Wuhan 430080, China) (4. Jiangsu Huaneng Cable Co., Ltd., Gaoyou 225613, China)
关键词:
桥梁缆索用钢丝; 超高强度; 扭转性能; 微观组织; 渗碳体
Keywords:
bridge cable steel wire;  ultra-high strength;  torsional property;  microstructure;  cementite
分类号:
TU511.3；U443.38
DOI:
10.7502/j.issn.1674-3962.201904017
文献标志码:
A
摘要:
随着桥梁建设向跨海、跨江、跨越大湾区以及跨越高山峡谷的方向发展，悬索桥和斜拉桥的跨度越来越大，对桥梁缆索用钢丝的要求也越来越高。桥梁缆索用钢丝的微观结构具有双层复合结构，由渗碳体片层和铁素体片层相互间隔组成，渗碳体片层决定其强度，铁素体片层决定其塑韧性，二者层间距的大小对其强韧性配比尤为重要。首先论述了国内外桥梁建设的发展以及桥梁缆索用超高强度钢丝的国内外生产与研究现状；然后讨论了桥梁缆索用超高强度钢丝的微观组织与宏观力学性能之间的关系，分析了其强韧化机理以及国内外热处理技术的优缺点。盘条的原始抗拉强度和冷拉拔加工过程中的形变量共同决定了冷拉拔钢丝的最终抗拉强度，在冷拉拔过程中组织形貌变化和累计的形变能是造成热镀锌过程中钢丝扭转性能降低的关键因素。桥梁缆索用超高强度钢丝存在的不足主要是缺乏与更高强度盘条相匹配的成分设计和热处理技术，及缺乏防止钢丝在热镀锌过程中扭转性能降低的先进冷拉拔加工技术。
Abstract:
With the development of bridge construction in the direction of sea-crossing, river-crossing, bay-crossing and mountain-crossing, the requirement of bridge cable steel wire is higher since the span of suspension bridges and cable-stayed bridges is getting larger. The double-layer composite microstructure of bridge cable steel wire is composed of cementite lamellae and ferrite lamellae with certain intervals. And, the strength and plasticitytoughness of bridge cable steels are depended on cementite lamellae and ferrite lamellae, respectively. The distance between two lamella is particularly important for the strength and toughness of bridge cable steels. Firstly, the production and research status of ultra-high strength steel wire（UHSSW) for bridge cables worldwide was reviewed in this paper, as well as the development of bridge construction. Moreover, the relationship between microstructure and mechanical properties of UHSSW for bridge cables was discussed. Its strengthening-toughening mechanism was analyzed. The advantages and disadvantages of heat treatment technology being applied on UHSSW for bridge cables were also analyzed. The final tensile strength of cold drawing steel wire is determined by both original tensile strength of wire rod and deformation during cold drawing process. The microstructure variation and accumulated deformation energy during cold drawing process are the key factors for reducing torsional property of steel wire in hotdip galvanizing process. Meanwhile, the shortcomings of UHSSW for bridge cables were pointed out. These are lack of composition design and heat treatment technology matching higher strength wire rod, and advanced cold drawing technology for preventing the torsional property degradation of steel wire during hot-dip galvanizing.

备注/Memo

备注/Memo:
收稿日期：2019-04-17修回日期：2019-07-31 基金项目：国家重点研发计划项目（2017YFB0304800）；湖北省自然科学基金项目（2018CFB304）第一作者：冯路路，男，1982年生，博士研究生通讯作者：吴开明，男，1966年生，教授，博士生导师， Email：wukaiming@wust.edu.cn
更新日期/Last Update: 2020-04-27