Metals and Materials International最新文献

{"title":"Alloy Element Adjustment and Heat Treatment Combination in Enhancing Electromagnetic Wave Absorption Properties of FeCoNiCu Medium Entropy Alloy","authors":"Hongyang Li,&nbsp;Wenqi Xu,&nbsp;Hong Li,&nbsp;Zhenfeng Shen,&nbsp;Shentao Zeng,&nbsp;Feng Yang,&nbsp;Ran Wang,&nbsp;Cui Luo,&nbsp;Ying Liu","doi":"10.1007/s12540-024-01867-7","DOIUrl":"10.1007/s12540-024-01867-7","url":null,"abstract":"<div><p>Fe1Co0.8Ni1Cu_x quaternary medium-entropy magnetic alloy particles with varied Cu element contents were prepared with liquid-phase reduction. Characterization of the microstructural features, static magnetic properties, and electromagnetic wave absorption behavior of these particles was carried out through SEM, VSM, and vector network analysis combined with heat treatment processes. The results demonstrate that the synthesized Fe1Co0.8Ni1Cux alloy particles exhibit a spherical morphology. Increasing Cu content leads to a gradual reduction in particle size, with average particle diameters decreasing to the range of 10–40 nm. Additionally, elevated annealing temperatures enhance the crystallinity of the alloy particles, causing particle aggregation and moderate growth. With the increase in Cu content, CoFe2O4 and CuFe2O4 phases are formed during annealing, resulting in a decrease in saturation magnetization intensity. Conversely, higher annealing temperatures promote crystallinity, thereby increasing saturation magnetization as well as residual magnetization and coercivity, exhibiting an initial rise followed by a decrease trend with increasing Cu element content. The real and imaginary components of the dielectric constant of Fe1Co0.8Ni1Cux alloy particles increase with Cu content, indicating improved dielectric loss capacity. However, the relationship between dielectric loss and Cu content is not linear, and post-heat treatment dielectric loss peaks are higher than in untreated samples. Multiple magnetic loss absorption peaks were observed in the imaginary component of permeability under different annealing conditions. Polarization relaxation is identified as the primary mechanism for dielectric loss, while eddy current loss dominates magnetic loss in some degree. The attenuation constant of heat-treated Fe1Co0.8Ni1Cux particles is higher than that of untreated particles, while the impedance matching value is lower. Under 600 °C annealing conditions, Fe1Co0.8Ni1Cu0.5 exhibits a minimum reflection loss (RLmin) of −40.26 dB, with a maximum absorption bandwidth of 4.72 GHz observed with coating thickness of 1.7 mm.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2160 - 2174"},"PeriodicalIF":4.0,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145166402","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Formation of Intermetallic Al2Pt-Phase by High Pressure Torsion of Elemental Chips at Cryogenic Temperature","authors":"E. G. Volkova,&nbsp;A. I. Valiullin,&nbsp;V. P. Pilyugin,&nbsp;T. P. Tolmachev,&nbsp;A. A. Livinets,&nbsp;A. A. Gavrilova,&nbsp;D. A. Gurianov,&nbsp;A. Yu. Volkov","doi":"10.1007/s12540-024-01866-8","DOIUrl":"10.1007/s12540-024-01866-8","url":null,"abstract":"<div><p>The intermetallic compound Al₂Pt has potential of use in radiation sensing devices and selective solar absorbers, and is a promising protective coating of jet engine turbine blades. In our study, we demonstrate for the first time the possibility of forming nanocrystallites of the Al₂Pt intermetallic compound in an Al-Pt disc produced by high pressure torsion (HPT) of elemental chips at cryogenic temperature. The composition of the Al + Pt mixture corresponds to the Al₂Pt stoichiometry. Microhardness dependences against the distance from the disc center have been plotted and phase composition in the different points has been investigated. The formation of some high-strength phases was confirmed by a significant increase in microhardness near the edge of the cryodeformed Al-Pt disc. The Al₂Pt intermetallic phase and amorphous phase were revealed both in XRD-scans and TEM-observations. The spread of Al₂Pt crystallites sizes is wide and ranges from 10 to 200 nm. It was found that the amorphous phase had a composition of about 85Al-15Pt (at%). Although Pt is almost insoluble in Al in an equilibrium state, it was suggested that a non-equilibrium solid solution of Pt was formed in the Al matrix under cryo-HPT.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2057 - 2068"},"PeriodicalIF":4.0,"publicationDate":"2024-12-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145165818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Strengthening Effect of Fe60Mn16Ni12Cr12 Medium-Entropy Alloys via Co-Doping Al / C","authors":"Seong-June Youn,&nbsp;Young-Kyun Kim,&nbsp;Jae Bok Seol,&nbsp;Duk-Hyun Chung,&nbsp;Young-Sang Na","doi":"10.1007/s12540-024-01865-9","DOIUrl":"10.1007/s12540-024-01865-9","url":null,"abstract":"<div><p>The strengthening effect of combined addition of substitutional and interstitial elements on the mechanical properties of medium-entropy alloys (MEAs) have rarely been explored. Hence, we analyzed the effects of co-doping Al and C on the mechanical properties of Fe₆₀Mn₁₆Ni₁₂Cr₁₂ MEA. The addition of 0.6 at% C and 1.0 at% Al to the MEA substantially increased the strength from 227 to 425 MPa without compromising the plasticity. Quantitative analyses demonstrated that the increase in strength originates from multiple mechanisms, including hetero-deformation-induced strengthening by the heterogeneous grain size structure.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2175 - 2179"},"PeriodicalIF":4.0,"publicationDate":"2024-12-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145164563","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Comparative Evaluation of the Mechanical Properties of Al–Si–Cu–Ni–Mg Alloys with Distinct Spatial Architectures at Ambient and High Temperatures","authors":"Kaiqi Hu,&nbsp;Tong Gao,&nbsp;Guiliang Liu,&nbsp;Qianqian Sun,&nbsp;Mengxia Han,&nbsp;Qingfei Xu,&nbsp;Xiangfa Liu","doi":"10.1007/s12540-024-01860-0","DOIUrl":"10.1007/s12540-024-01860-0","url":null,"abstract":"<div><p>This study presents a comprehensive analysis of the mechanical properties of Al–Si–Cu–Ni–Mg piston alloys in both as-cast (AC) and as-extruded (AE) states, examining the microstructural configurations and their influence on mechanical properties ranging from ambient temperature to 350 °C. The AC alloy demonstrates a semi-continuous network distribution of secondary phases, in contrast to the dispersed particle distribution in AE alloy. A significant decrease in tensile and yield strengths with the temperature increasing is observed for both alloys. Notably, the AE alloy outperforms the AC alloy in tensile properties at ambient temperature, with ultimate tensile strength and elongation reaching 365 MPa and 12%, respectively. However, the AC alloy exhibits superior tensile strength at 250–350 °C. The study introduces the concept of failure rate (FR) to elucidate the temperature-dependent tensile strength reduction, revealing that the AC alloy maintains a lower FR compared to the AE alloy within the 250–350 °C range. The comprehensive analysis of strengthening mechanisms suggests that Orowan and thermal mismatch dislocation strengthening dominate at ambient temperature, while load transfer and network strengthening become predominant at elevated temperatures. These findings might provide critical insights into alloy performance optimization for high-temperature applications.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1932 - 1948"},"PeriodicalIF":4.0,"publicationDate":"2024-12-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on Mechanical, Microstructural and Corrosion Analysis of Wire Arc Additive Manufactured AZ31 Magnesium Alloy","authors":"Suresh Goka,&nbsp;M. Manjaiah,&nbsp;M. Joseph Davidson","doi":"10.1007/s12540-024-01864-w","DOIUrl":"10.1007/s12540-024-01864-w","url":null,"abstract":"<div><p>Wire arc additive manufacturing (WAAM) offers significant potential for producing large-scale magnesium (Mg) alloy components, which are highly valuable for industries such as automotive and aerospace. This study explores the microstructure, mechanical properties, and corrosion performance of AZ31 magnesium alloy produced using the cold metal transfer (CMT)-WAAM process. Microstructural analysis reveals that the WAAM-fabricated AZ31 exhibits an equiaxed grain structure with intergranular precipitates, influenced by welding parameters and cooling rates. The study also examines the impact of process parameters on bead geometry and microstructure, emphasizing the relationship between wire feed rate, travel speed, and bead characteristics. Tensile samples were extracted from the base plate at orientations of 0°, 45°, and 90°. The average ultimate tensile strength (UTS) and percentage elongation for the WAAM-processed AZ31 magnesium alloy ranged from 289 to 301 MPa and 19 to 22%, respectively, depending on the orientation. WAAM-fabricated AZ31 which is superior compared to conventional cast and wrought alloys, attributed to fine grain structure and evenly distribution of precipitates such as α-Mg and Mg₁₇Al₁₂. X-ray diffraction analysis and EDS validate the presence of α-Mg, and Mg₁₇Al₁₂ phases in the fabricated alloy. Corrosion tests revealed that the formation of a protective film significantly enhanced the corrosion resistance of WAAM-fabricated samples compared to the wrought alloy. Electrochemical testing showed superior corrosion resistance in the bottom region of the thin wall, with a corrosion rate of approximately 12 mm/y, compared to the top region, which had a corrosion rate of about 16 mm/y. This improved performance was attributed to the refined grain structure and the presence of a protective oxide film.</p><h3>Graphical Abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2104 - 2122"},"PeriodicalIF":4.0,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145162366","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Dual Deformation Processes on the Microstructure and Mechanical Properties of Low-Alloyed Mg-Zn-Ca-Mn Alloy","authors":"Sha Sha,&nbsp;Feng Wang,&nbsp;Rongguang Li,&nbsp;Yan Tang,&nbsp;Wenyuan Cong,&nbsp;Hang Zhang,&nbsp;Boshu Liu,&nbsp;Shanshan Li","doi":"10.1007/s12540-024-01855-x","DOIUrl":"10.1007/s12540-024-01855-x","url":null,"abstract":"<div><p>To drive the advancement of cost-effective deformed magnesium alloys, a high-strength Mg-3Zn-1.2Ca-0.5Mn (wt%) alloy with moderate ductility is successfully manufactured by employing low-temperature extrusion and warm rolling techniques. The influence of extrusion-rolling (E+R) on the microstructure, texture and mechanical properties of Mg-3Zn-1.2Ca-0.5Mn alloy has been investigated through employing microstructure characterization techniques and mechanical property experiments. Experimental finding indicates that a tensile yield strength (TYS) of extruded Mg-3Zn-1.2Ca-0.5Mn alloy is 180 MPa. Subsequent warm-rolling further enhances the TYS of the extruded Mg-3Zn-1.2Ca-0.5Mn alloy, soaring it from 180 to 349 MPa. Through the rolling process, a substantial proportion of low angle grain boundaries (LAGBs) and twin boundaries are generated within the grain structure. With the obstruction of grain boundary migration by LABGs, the fragmentation of grains during rolling and twinning boundaries, the grain size is significantly reduced from 2.98 μm in extrusion to 1.53 μm in rolling. At the same time, the nanoparticles are identified as Ca₂Mg₆Zn₃, MgZn₂, Mg₄Zn₇, and α-Mn with the shape of rod and spherical, which hinder the migration of LAGBs and maintain the stability of LAGBs. Additionally, the rolled alloy also shows a typical strong basal texture, characterized by the alignment of the (0001) plane parallel to the rolling surface and the orientation of the &lt;10-10&gt; direction parallel to rolling direction (RD). The high strength in E+R Mg-3Zn-1.2Ca-0.5Mn alloy is mainly ascribed to the comprehensive effect resulting from a high fraction of LAGBs and a strong texture.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2027 - 2041"},"PeriodicalIF":4.0,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161394","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effects of Heat Treatment on Tribological Behaviour of Al–Si Coated 22MnB5 and SKD61 Tool Steels in Hot Stamping","authors":"Min-Ki Ji,&nbsp;Hyun Sung Son,&nbsp;Jin Keun Oh,&nbsp;Seong Woo Kim,&nbsp;Fathia Alkelae,&nbsp;Tea-Sung Jun","doi":"10.1007/s12540-024-01862-y","DOIUrl":"10.1007/s12540-024-01862-y","url":null,"abstract":"<div><p>In this study, we investigated the heat treatment effects on tribological behaviour between Al–Si coated 22MnB5 and SKD61 tool steels in hot stamping process using a high temperature tribosystem developed based on a strip drawing method. Heat treatments were conducted at 900 and 930 °C for durations of 220–600 s prior to friction testing. The results indicated that variations in heat treatment significantly impact porosity, oxide formation, and intermetallic compounds, thereby altering wear behaviour. Differences in heat treatment conditions led to variations of the total heat applied to the steel sheets, which influenced the diffusion of Al into the substrate and Fe into the coating. These diffusional differences underlay the distinct porosity, oxide formation, and intermetallic composition observed with each treatment, which in turn impacted wear behaviour. Under conditions of 900 °C for 220 s, unalloyed aluminium remained on the surface, intensifying adhesive wear due to increased adhesion to the tool. In contrast, at 930 °C for 220 s, aluminium alloying was promoted, forming a substantial Fe₂Al₅ phase that increased adhesive wear. Under conditions of 900 °C for 600 s and 930 °C for 600 s, the increased temperature and duration influenced porosity levels, with the higher porosity observed at 930 °C for 600 s, leading to increased debris formation and enhancing adhesive wear. These findings provide the potential to optimise wear behaviour and tool life in hot stamping applications by adjusting heat treatment parameters.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1949 - 1961"},"PeriodicalIF":4.0,"publicationDate":"2024-12-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Elevated Temperature on Low Cycle Fatigue and Tensile Strength of 12Cr Ferritic Steel","authors":"Un Bong Baek,&nbsp;Jaeyeong Park,&nbsp;Thanh Tuan Nguyen","doi":"10.1007/s12540-024-01858-8","DOIUrl":"10.1007/s12540-024-01858-8","url":null,"abstract":"<div><p>This research investigates the low cycle fatigue (LCF) and tensile properties of X20CrMoV12.1 steel which belongs to the group 12Cr ferritic steels at 538–566 °C. The tensile strength measured at elevated temperature exhibits a reduction of approximately 30% compared to values obtained at ambient conditions. Conversely, ductility properties show a significant increase under elevated temperatures. Fatigue strength at elevated temperatures is generally lower than at ambient conditions for similar strain amplitudes, with a pronounced reduction observed at low strain amplitudes. Fractographic analysis indicates that the observed reduction in fatigue strength at low strains is due to oxidation-induced microcrack initiations following prolonged exposure to high temperatures. The Basquin-Coffin-Masson models and Ramberg–Osgood models were utilized to characterize the LCF properties of the materials for each temperature condition. The transition fatigue life of sample performed at ambient air is approximately half that of those tested at elevated temperatures. The findings demonstrate that the influence of chromium content on improving the LCF properties of X20CrMoV12.1 material is insignificant compared to materials with lower chromium content under the elevated temperature range of 538–566 °C.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"1902 - 1919"},"PeriodicalIF":4.0,"publicationDate":"2024-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145161275","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Formation of Abnormal Texture and Anisotropy Weakening Mechanism of Mg–Gd–Y–Zn–Zr Sheets by Rotary Forward Extrusion","authors":"Qianning Liu,&nbsp;Yunfang Liu,&nbsp;Yue Zhao,&nbsp;Xiaoxia Han,&nbsp;Zhimin Zhang,&nbsp;Huagui Huang,&nbsp;Linlin Li,&nbsp;Jianmin Yu","doi":"10.1007/s12540-024-01857-9","DOIUrl":"10.1007/s12540-024-01857-9","url":null,"abstract":"<div><p>In this work, the effect of rotary forward extrusion technique on the development of texture structure and mechanical anisotropy of Mg–12Gd–4Y–2Zn–0.4Zr sheets is studied. The experiments were carried out using a large-sized alloy (φ330 × 1100 mm) at an extrusion temperature of 460 °C and a high extrusion ratio (10.18). The average grain size of the alloy gradually decreases from 126.3 μm to 10 μm with increasing cumulative stress during rotary forward extrusion, the size of the second phase also decreases significantly and is uniformly distributed. At the same time, an abnormal texture (an abnormal extrusion texture with c-axis parallel to extrusion direction) parallel to the extrusion direction (ED) was formed by the rotation of &lt; 0001 &gt; grains, which was caused by the rotation of the basal plane along the principal stress axis driven by the continuous non-basal plane slip under high stress conditions. Dynamic recrystallized (DRX) also plays an essential role in the formation of the abnormal texture, where the DRX process produces a proportion of grains with the nucleation orientation &lt; 0001 &gt; . The subsequent preferential growth of these grains further promotes the rotation of the majority of grains oriented in the &lt; 0001 &gt; direction. Although the nucleation phase of DRX contributes to the formation of abnormal texture, the preferred growth stage of grains has a greater influence on the abnormal texture. In addition, due to the introduction of strong shear stresses, the degree of buckling and fragmentation of the Long Period Stacking Ordered (LPSO) phase is enhanced in all directions, which in turn reduces the morphological differences in different directions, ultimately leading to a significant weakening of mechanical anisotropy. This weakening of mechanical anisotropy is closely related to the homogeneity of the grain size and the differences in the morphology of the LPSO phases.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 7","pages":"2042 - 2056"},"PeriodicalIF":4.0,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145160816","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Mn Content on the Microstructure and Corrosion Resistance of Duplex Stainless Steels Fabricated by Wire Arc Additive Manufacturing","authors":"Shuainan Song,&nbsp;Gang Li,&nbsp;Biao Wu,&nbsp;Qun Cai,&nbsp;Xiangwei He","doi":"10.1007/s12540-024-01842-2","DOIUrl":"10.1007/s12540-024-01842-2","url":null,"abstract":"<div><p>Duplex stainless steels (DSSs) fabricated by wire arc additive manufacturing (WAAM) have been attracted significant attention by researchers due to their good mechanical properties and corrosion resistance. In this study, nickel-saving cored wires are developed as filler wire for the DSSs via WAAM process. The effect of Mn content on the microstructure and corrosion resistance of WAAM-ed DSSs is studied in detail. The results indicate multiple kinds of austenite including grain boundary austenite, Widmanstätten austenite and intragranular austenite grains are formed among the ferrite in the deposited metals. The ferrite–austenite phase balance can be obtained in the deposited metals. The impedance polarization indicates that the charge transfer resistance increases, whereas the corrosion current density of the deposited metals decreases with increasing the Mn content. From the corrosion morphology, it is observed that the corrosion pits become shallower and decrease on the deposited metals with increasing the Mn content. The increase of Mn content improves the corrosion resistance of the deposited metals via WAAM process.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":703,"journal":{"name":"Metals and Materials International","volume":"31 6","pages":"1738 - 1753"},"PeriodicalIF":3.3,"publicationDate":"2024-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144108431","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}