Establishment on the chloride resistant clad rebar weld process in simulated seawater

To enhance the weld process of the new type of clad rebar construction in the marine environment, the weld process of the clad rebar was established. Four different weld processes were used to weld the clad rebars. The microscopy of the welded joints was examined using a optical microscope. The mech...

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Main Authors: Zecheng Zhuang, Weiping Lu, Zhe Gou, Lei Zeng, Rifeng Wang, Xuehai Qian, Erte Lin, Zhen Li, Yong Xiang, Jianping Tan
Format: Article
Language:English
Published: Elsevier 2025-12-01
Series:Case Studies in Construction Materials
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Online Access:http://www.sciencedirect.com/science/article/pii/S2214509525007259
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author Zecheng Zhuang
Weiping Lu
Zhe Gou
Lei Zeng
Rifeng Wang
Xuehai Qian
Erte Lin
Zhen Li
Yong Xiang
Jianping Tan
author_facet Zecheng Zhuang
Weiping Lu
Zhe Gou
Lei Zeng
Rifeng Wang
Xuehai Qian
Erte Lin
Zhen Li
Yong Xiang
Jianping Tan
author_sort Zecheng Zhuang
collection DOAJ
description To enhance the weld process of the new type of clad rebar construction in the marine environment, the weld process of the clad rebar was established. Four different weld processes were used to weld the clad rebars. The microscopy of the welded joints was examined using a optical microscope. The mechanical characteristics of the welded specimens were assessed through the microhardness test. The corrosion resistant of the welded materials was evaluated using an electrochemical corrosion test. The corrosion morphology and element distribution were observed using scanning electron microscopy. The consequences depicted that arc welding has little effects on the microstructure of welded joints, and the hardness values of stainless steel welding metals, ranked from highest to lowest, are as follows: Metal Active Gas (MAG) welding at 115 A welding current, Arc welding, Metal Inert Gas (MIG), and Metal Active Gas (MAG) welding at 230 A welding current. According to the results of corrosion experiments, the welding metal from Arc welding exhibited the highest corrosion resistance, followed by the MAG welding at 230 A, MIG welding, and MAG welding at 115 A. After combining the microscopy, mechanical characteristics, and corrosion resistance, it was found that Arc welding is the most reasonable of the four welding processes. Select the most proper weld processes parameters, moreover, it lays a scientific foundation to establish the subsequent welding processes of the clad steel bars.
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spelling doaj-art-b34fcae73a6045e0851aa664f68ce9cb2025-08-20T03:20:06ZengElsevierCase Studies in Construction Materials2214-50952025-12-0123e0492710.1016/j.cscm.2025.e04927Establishment on the chloride resistant clad rebar weld process in simulated seawaterZecheng Zhuang0Weiping Lu1Zhe Gou2Lei Zeng3Rifeng Wang4Xuehai Qian5Erte Lin6Zhen Li7Yong Xiang8Jianping Tan9Light Alloys Research Institute, Central South University, Changsha 410083, China; Guangxi Normal University of Science and Technology, Laibin 546199, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, ChinaLight Alloys Research Institute, Central South University, Changsha 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, China; Corresponding author at: College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China.College of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, ChinaGuangxi Normal University of Science and Technology, Laibin 546199, ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; Technology Centre, Guangxi Liuzhou Iron and Steel Group Lt.d, Liuzhou 545002, ChinaCollege of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, ChinaChangsha WuJiang Intelligent Innovation Technology co.,Lt.d, Changsha 410023, ChinaHunan Provincial Engineering Research Centre for Laminated Metal Composites, Changsha 410083, ChinaLight Alloys Research Institute, Central South University, Changsha 410083, China; State Key Laboratory of Precision Manufacturing for Extreme Service Performance, Central South University, Changsha 410083, ChinaTo enhance the weld process of the new type of clad rebar construction in the marine environment, the weld process of the clad rebar was established. Four different weld processes were used to weld the clad rebars. The microscopy of the welded joints was examined using a optical microscope. The mechanical characteristics of the welded specimens were assessed through the microhardness test. The corrosion resistant of the welded materials was evaluated using an electrochemical corrosion test. The corrosion morphology and element distribution were observed using scanning electron microscopy. The consequences depicted that arc welding has little effects on the microstructure of welded joints, and the hardness values of stainless steel welding metals, ranked from highest to lowest, are as follows: Metal Active Gas (MAG) welding at 115 A welding current, Arc welding, Metal Inert Gas (MIG), and Metal Active Gas (MAG) welding at 230 A welding current. According to the results of corrosion experiments, the welding metal from Arc welding exhibited the highest corrosion resistance, followed by the MAG welding at 230 A, MIG welding, and MAG welding at 115 A. After combining the microscopy, mechanical characteristics, and corrosion resistance, it was found that Arc welding is the most reasonable of the four welding processes. Select the most proper weld processes parameters, moreover, it lays a scientific foundation to establish the subsequent welding processes of the clad steel bars.http://www.sciencedirect.com/science/article/pii/S2214509525007259Welding processClad rebarsWeldElectrochemical corrosionMicrostructure
spellingShingle Zecheng Zhuang
Weiping Lu
Zhe Gou
Lei Zeng
Rifeng Wang
Xuehai Qian
Erte Lin
Zhen Li
Yong Xiang
Jianping Tan
Establishment on the chloride resistant clad rebar weld process in simulated seawater
Case Studies in Construction Materials
Welding process
Clad rebars
Weld
Electrochemical corrosion
Microstructure
title Establishment on the chloride resistant clad rebar weld process in simulated seawater
title_full Establishment on the chloride resistant clad rebar weld process in simulated seawater
title_fullStr Establishment on the chloride resistant clad rebar weld process in simulated seawater
title_full_unstemmed Establishment on the chloride resistant clad rebar weld process in simulated seawater
title_short Establishment on the chloride resistant clad rebar weld process in simulated seawater
title_sort establishment on the chloride resistant clad rebar weld process in simulated seawater
topic Welding process
Clad rebars
Weld
Electrochemical corrosion
Microstructure
url http://www.sciencedirect.com/science/article/pii/S2214509525007259
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