• CN:11-2187/TH
  • ISSN:0577-6686

机械工程学报 ›› 2018, Vol. 54 ›› Issue (2): 125-130,137.doi: 10.3901/JME.2018.02.125

• 材料科学与工程 • 上一篇    下一篇

冷轧不锈钢丝网增强铝基复合板性能分析

黄华贵, 王计超, 刘文文, 杜凤山   

  1. 燕山大学国家冷轧板带装备及工艺工程技术研究中心 秦皇岛 066004
  • 收稿日期:2016-12-27 修回日期:2017-06-21 出版日期:2018-01-20 发布日期:2018-01-20
  • 通讯作者: 黄华贵(通信作者),男,1978年出生,博士,教授,博士研究生导师。主要研究方向为层状金属复合材料制备工艺及装备、数值模拟技术及工程应用。E-mail:hhg@ysu.edu.cn
  • 作者简介:王计超,男,1993年出生,硕士研究生。主要研究方向为不锈钢丝网增强铝基复合板轧制复合技术。E-mail:2567214873@qq.com;刘文文,男,1990年出生,博士研究生。主要研究方向为层状金属复合材料固-液铸轧复合技术。E-mail:837725878@qq.com;杜凤山,男,1960年出生,教授,博士研究生导师。主要研究方向为双辊振动铸轧近终成形工艺与装备技术、轧机数字化技术。E-mail:fsdu@ysu.edu.cn
  • 基金资助:
    国家自然科学基金(51474189)和河北省高等学校科学技术研究(QN2015214)资助项目。

Analysis on Mechanical Properties of Stainless Steel Wire Mesh Reinforced Aluminum Composite Plate Fabricated by Cold Rolling

HUANG Huagui, WANG Jichao, LIU Wenwen, DU Fengshan   

  1. National Engineering Research Center for Equipment and Technology of Cold Strip Rolling, Yanshan University, Qinhuangdao 066004
  • Received:2016-12-27 Revised:2017-06-21 Online:2018-01-20 Published:2018-01-20

摘要: 以冷轧复合法制备不锈钢丝网增强铝基复合板,采用金相显微镜观察复合界面微观形貌随压下率变化的演变规律,利用拉伸试验机获得复合板力学性能。结果表明:随着压下率增大,复合界面由最初的钢丝网与铝板间机械咬合转变为钢丝网交叉点与铝板间的局部点焊合,随后为钢丝网交叉点与铝板间的面焊合及非交叉点处钢丝与铝板间的局部点焊合;当压下率达到52.8%时,钢丝网与铝板间形成全面焊合及铝板与铝板间的结合。复合板力学性能测试结果显示:0°钢丝网增强复合板抗拉强度、比抗拉强度在一定范围内随着冷轧压下率、钢丝网目数的增大而提高,随铝板初始厚度增大呈下降趋势,当铝板初始厚度大于2 mm后,钢丝网增强效果较小。不同摆放角度钢丝网增强复合板较无钢丝网增强铝-铝复合板抗拉强度有所提高,0°钢丝网增强复合板提高22.5%,45°钢丝网增强复合板提高34.2%,但伸长率都有所下降,其中45°钢丝网增强复合板伸长率下降较少。

关键词: 比抗拉强度, 不锈钢丝网增强铝基复合板, 复合界面, 抗拉强度, 冷轧

Abstract: Aiming at the stainless steel wire mesh reinforced aluminium composite plate fabricated by cold rolling process, the evolution of the microstructure of the composite interface with reduction ratio changing is observed by metallographic microscope, and the mechanical properties of the composite plate is investigated by tensile testing machine. The results show that with the increasing of reduction ratio, the boning interface changes from the original mechanical occluding between wire mesh and aluminium plate to the local point welding between wire mesh's overlapping point and aluminium plate, then it turns to the surface welding of wire mesh's overlapping point and aluminium plate as well as the local point welding of not overlapping point area's wire and aluminium plate. When the reduction ratio reaches 52.8%, comprehensive welding is formed between wire mesh and aluminium plate as well as the bonding between aluminium plate and aluminium plate. The test results of composite plate's mechanical performance show that in a certain range, the tensile strength and specific tensile strength of the composite plate increase with the increasing of reduction ratio and number of wire mesh, and both of them show a downward trend with the increasing of the initial thickness of aluminium plate. Steel wire mesh reinforcement effect is small when the aluminium plate's initial thickness is more than 2 mm. Compared to the unreinforced Al/Al composite plate, tensile strength of the composite plate reinforced with steel wire mesh placed at different orientations is higher. The tensile strength of 0° steel wire reinforced composite plate increases by 22.5% and the tensile strength of 45° steel wire reinforced composite plate increases by 34.2%. But percent elongation is lower, and percent elongation of 45° steel wire reinforced composite plate decreases less.

Key words: cold rolling, composite interface, specific tensile strength, stainless steel wire mesh reinforced aluminium composite plate, tensile strength

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