Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control
Heterogeneous material welding technology has been widely applied in various industrial production processes. However, research on utilizing heterogeneous material welding processes for part repair and processing remains scarce. This study aims to combine part additive manufacturing repair technolog...
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| Format: | Article |
| Language: | English |
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Elsevier
2025-07-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785425017156 |
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| author | Fengya Hu Yang Yu Tie Liu Guorui Sun Chao Chen |
| author_facet | Fengya Hu Yang Yu Tie Liu Guorui Sun Chao Chen |
| author_sort | Fengya Hu |
| collection | DOAJ |
| description | Heterogeneous material welding technology has been widely applied in various industrial production processes. However, research on utilizing heterogeneous material welding processes for part repair and processing remains scarce. This study aims to combine part additive manufacturing repair technology with dissimilar material joining technology, using additive manufacturing of 304 stainless steel to repair notches in Q235 carbon steel parts, and employing the GTAW process to weld the two materials together. The study also investigates the effects of different arc offset positions on the microstructure and corrosion performance of the welded joints in the repair zone, as well as the underlying mechanisms. The research results indicate: coarse-grained zones and fine-grained zones were observed in the heat-affected zone on the Q235 steel side of each sample, while no obvious heat-affected zone was found on the 304 stainless steel additive manufacturing side; when the arc is biased toward the Q235 steel, the plate-like martensite has larger dimensions and stronger orientation; When the arc is shifted to AM 304 stainless steel, the weld exhibits significantly better corrosion resistance (Jcorr = 2.158 × 10−6 A/cm2) than the weld with the arc shifted to the Q235 side (Jcorr = 4.571 × 10−6 A/cm2), with the corrosion rate increasing by more than double. |
| format | Article |
| id | doaj-art-5d62dc35022b47bb96ac15931dccca91 |
| institution | DOAJ |
| issn | 2238-7854 |
| language | English |
| publishDate | 2025-07-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj-art-5d62dc35022b47bb96ac15931dccca912025-08-20T03:17:27ZengElsevierJournal of Materials Research and Technology2238-78542025-07-01373448345710.1016/j.jmrt.2025.07.057Additive manufacturing - welding composite repair of Q235 steel: interface microstructure controlFengya Hu0Yang Yu1Tie Liu2Guorui Sun3Chao Chen4State Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan, 114003, China; Iron and Steel Research Institute of Ansteel Group, Anshan, 114003, ChinaState Key Laboratory of Metallic Materials for Marine Equipment and Applications, Anshan, 114003, China; Iron and Steel Research Institute of Ansteel Group, Anshan, 114003, ChinaSteel Making General Plant of Angang Steel Co., Anshan, 114021, ChinaKey Laboratory of Automobile Materials, School of Materials Science and Engineering, Jilin University, Changchun, 130025, China; Corresponding author.Key Laboratory of Automobile Materials, School of Materials Science and Engineering, Jilin University, Changchun, 130025, China; Corresponding author.Heterogeneous material welding technology has been widely applied in various industrial production processes. However, research on utilizing heterogeneous material welding processes for part repair and processing remains scarce. This study aims to combine part additive manufacturing repair technology with dissimilar material joining technology, using additive manufacturing of 304 stainless steel to repair notches in Q235 carbon steel parts, and employing the GTAW process to weld the two materials together. The study also investigates the effects of different arc offset positions on the microstructure and corrosion performance of the welded joints in the repair zone, as well as the underlying mechanisms. The research results indicate: coarse-grained zones and fine-grained zones were observed in the heat-affected zone on the Q235 steel side of each sample, while no obvious heat-affected zone was found on the 304 stainless steel additive manufacturing side; when the arc is biased toward the Q235 steel, the plate-like martensite has larger dimensions and stronger orientation; When the arc is shifted to AM 304 stainless steel, the weld exhibits significantly better corrosion resistance (Jcorr = 2.158 × 10−6 A/cm2) than the weld with the arc shifted to the Q235 side (Jcorr = 4.571 × 10−6 A/cm2), with the corrosion rate increasing by more than double.http://www.sciencedirect.com/science/article/pii/S2238785425017156Part repairDissimilar weldingArc biasMicrostructureCorrosion resistance |
| spellingShingle | Fengya Hu Yang Yu Tie Liu Guorui Sun Chao Chen Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control Journal of Materials Research and Technology Part repair Dissimilar welding Arc bias Microstructure Corrosion resistance |
| title | Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control |
| title_full | Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control |
| title_fullStr | Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control |
| title_full_unstemmed | Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control |
| title_short | Additive manufacturing - welding composite repair of Q235 steel: interface microstructure control |
| title_sort | additive manufacturing welding composite repair of q235 steel interface microstructure control |
| topic | Part repair Dissimilar welding Arc bias Microstructure Corrosion resistance |
| url | http://www.sciencedirect.com/science/article/pii/S2238785425017156 |
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