Journal of Materials Engineering and Performance最新文献

{"title":"Crystal Plasticity Modeling of Initial and Neighbor Grain Orientation Effects on Cold-Rolling Texture of Ultra-Large Grain-Oriented Silicon Steel","authors":"Yalong Luo,&nbsp;Haochen Ding,&nbsp;Luyang Miao,&nbsp;Chi Zhang,&nbsp;Liwen zhang,&nbsp;Chongxiang Yue","doi":"10.1007/s11665-025-12594-4","DOIUrl":"10.1007/s11665-025-12594-4","url":null,"abstract":"<div><p>A dislocation density-based crystal plasticity method is used to investigate the evolution of cold-rolled texture in grain-oriented silicon steel with ultra-large grains. In polycrystalline materials, if the initial texture deviation from Goss is within 10^°, the polycrystalline deformation is uniform, and a strong {111} &lt; 112 &gt; texture appears after a 66.7% thickness reduction. Conversely, if the deviation angle is over 10^°, the polycrystalline deformation is heterogeneous, and the cold-rolled texture deviates from the {111} &lt; 112 &gt; texture. For individual grains, after a 66.7% thickness reduction, the exact Goss texture changes to the {111} &lt; 112 &gt; texture, and the neighbor grain texture influence is negligible; the grain with initial orientation (0^°, 40^°, 0^°), which is a 5^° deviated Goss orientation, rotates to the deviated {111} &lt; 112 &gt; orientation, the neighbor grain orientation has a significant effect on cold-rolled texture, and the larger the deviated Goss angle of the initial neighbor grains, the greater the difference in deformation capacity between a deviated Goss grain and its neighboring grains. The cold-rolled texture rotates along the [1-10] axis toward the {111} &lt; 112 &gt; near orientation when the neighbor grain Goss deviation angle is within 10^°. It may also rotate slightly along the ND axis. When the neighbor grain Goss deviation angle is over 10^°, the heterogeneity-induced deviated Goss grain rotates in two paths during the early deformation stage: I) rotation along the [1-10] axis toward the {111} &lt; 112 &gt; orientation and II) rotation along the ND axis toward the {110} &lt; 229 &gt; orientation, and in the following thickness reduction, the texture rotates along the [1-10] axis, and the orientation deviation along the ND axis is retained; the initial orientation (10^°, 53^°, 0^°) which deviated from Goss orientation 12.8°, rotates to the {223} &lt; 124 &gt; and {122} &lt; 144 &gt; orientations. It seriously deviates from the ideal {111} &lt; 112 &gt; orientation. The simulation result is consistent with the quasi-in situ experimental result.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 14","pages":"13771 - 13787"},"PeriodicalIF":2.0,"publicationDate":"2025-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147682767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Aging Treatment on Microstructure and Properties of As-Rolled Al-8.2Zn-2.0Mg-2.3Cu Alloy","authors":"Qin Wu,&nbsp;Huaqin Lv,&nbsp;Caihe Fan,&nbsp;Yuxuan Liu,&nbsp;Shuangjun Yang,&nbsp;Yumeng Ni,&nbsp;Zeyi Hu,&nbsp;Meilian Liao","doi":"10.1007/s11665-025-12764-4","DOIUrl":"10.1007/s11665-025-12764-4","url":null,"abstract":"<div><p>This study looks at how different aging treatments—T6, two-stage aging (TSA), and tertiary aging (TEA)—affect the microstructure and properties of the rolled Al-8.2Zn-2.0Mg-2.3Cu alloy. The results show that both the T6 and TEA samples are primarily consisting of <i>η</i>′ phase and GPII zone, with the average radius of the <i>η</i>′ phase in TEA sample which is slightly increased; the TSA sample contains GPII zone, <i>η</i>′ phase, and MgZnCu phase. The T6 sample has the smallest size and the highest number of the precipitates, leading to the best mechanical performance with a ultimate tensile strength of 757.3 ± 14.7 MPa, yield strength of 666.4 ± 15.2 MPa, and elongation of 12.4%. The strength of the TEA sample is slightly lower than those of the T6 sample, while the TEA sample shows the best corrosion resistance, where the Ecorr, Icorr values, and maximum intergranular corrosion depth are − 1332 mV, 28.2 μA cm⁻², and 97.3 ± 4.5 μm, respectively. This exceptional synergy of strength-ductility-corrosion resistance in the TEA sample originates from two key microstructural features: (i) the narrowest precipitate-free zones and (ii) its precipitate volume fraction, density, and size distribution similar to the T6.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 16","pages":"15571 - 15582"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147755987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Fabrication of Superhydrophobic Surface on Aluminum Alloy via Dual-Role Nanosecond Laser Ablation and Induction","authors":"Qibiao Yang,&nbsp;Zihao Xu,&nbsp;Zongyu Yi,&nbsp;Leyan Sun,&nbsp;Jian Cheng,&nbsp;Lie Chen,&nbsp;Deyuan Lou,&nbsp;Qianliang Li,&nbsp;Dun Liu","doi":"10.1007/s11665-025-12834-7","DOIUrl":"10.1007/s11665-025-12834-7","url":null,"abstract":"<div><p>The corrosion-induced failure of aluminum alloys in harsh environments, such as humid and chloride-containing conditions, severely constrains their service life. In this study, nanosecond laser ablation and laser-induced conversion of myristic acid to aluminum myristate are combined to propose a novel three-step method for fabricating superhydrophobic surfaces on 2024-T351 aluminum alloy. SEM, XPS and Raman spectroscopy are used to characterize the surface morphology, chemical composition, and molecular structure of the samples, respectively, to investigate the formation mechanism of the novel superhydrophobic surface. The results indicate that, under the laser fluence of 6.23 J/cm², the scanning speed of 200 mm/s, and the scanning space of 75 µm, the optimal superhydrophobic surface is achieved, exhibiting a contact angle of 161° and a rolling-off angle of 2.9°. Laser-induced myristic acid reacts with surface alumina to form stable aluminum myristate. Results from physical abrasion tests and electrochemical corrosion experiments demonstrate that the superhydrophobic aluminum alloy surface possesses excellent stability and corrosion resistance. This study provides an efficient, green, and economical method for large-scale fabrication of superhydrophobic surfaces on 2024-T351 aluminum alloy.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16714 - 16730"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829195","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Structural, Mechanical, and Corrosion Characteristics of Hypereutectic Al-Sb Alloys Synthesized by Powder Metallurgy","authors":"Mohammed Salamah Alruwaili,&nbsp;Eman AbdElRhiem,&nbsp;Abdelhamid Elzarka,&nbsp;Rizk Mostafa Shalaby","doi":"10.1007/s11665-025-12654-9","DOIUrl":"10.1007/s11665-025-12654-9","url":null,"abstract":"<div><p>Hypereutectic aluminum-antimony (Al-Sb) alloys with varying Sb contents (20–70 wt.%) were synthesized via powder metallurgy alongside pure Al. Structural characterization by x-ray diffraction (XRD) confirmed the presence of cubic α-Al, AlSb intermetallics, and rhombohedral Sb phases. The surface morphology revealed a uniform distribution and coarsening of Sb/AlSb within the Al matrix. Moreover, the mechanical properties of the samples were also evaluated using Vickers microhardness under different loads and testing times. The microhardness exhibited an increase with Sb addition, reaching ~ 164 MPa at 20 wt.% of Sb. This value is nearly double that of pure Al, due to supersaturated solid solutions, refined AlSb, and Sb phases. Stress exponent analysis indicated that dislocation motion was hindered by intermetallic compounds, influencing deformation mechanisms. Corrosion performance was assessed in 3.5% NaCl using open-circuit potential (OCP), electrochemical impedance spectroscopy (EIS), and potentiodynamic polarization (PDP). Results showed that Sb addition deteriorates the corrosion resistance of the samples, with increasing corrosion current density, higher corrosion rates, and the potential shift toward more negative values. This degradation is attributed to AlSb intermetallics disrupting the continuity of the protective oxide film. At higher Sb levels, corrosion resistance decreased considerably, with a deterioration of ~ 720% compared to pure Al. Overall, Sb enhances hardness but compromises corrosion resistance in Al-Sb alloys.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 15","pages":"14435 - 14453"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147727369","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Investigation of Cr21Co21Fe21Ni21Mn11Nb5 High Entropy Alloy for Intermediate Temperature Solid Oxide Fuel Cell Interconnect","authors":"Naveen Kumar,&nbsp;Sujit Das,&nbsp;Nitesh Kumar Jha,&nbsp;Sheela Singh","doi":"10.1007/s11665-025-11770-w","DOIUrl":"10.1007/s11665-025-11770-w","url":null,"abstract":"<div><p>Solid oxide fuel cells (SOFCs) receive significant attention due to theirs high efficiency, environmental advantages, and fuel flexibility. The interconnect is a crucial part that connects each cell in the SOFC stack. The High Entropy Alloy (HEA) of FeCoCrNiMn_0.5 is a promising candidate for an interconnect material at intermediate temperatures (600 °C to 800 °C) in Solid Oxide Fuel Cells (SOFC) due to its good thermal stability and electrical conductivity. However, FeCoCrNiMn_0.5 HEA has a higher coefficient of thermal expansion (CTE) than the other interconnect materials (SUS 430, Crofer 22 APU) in SOFCs such as LSM (Lanthanum Strontium Manganite) cathode and NiO-YSZ anode. The high CTE in an HEA is undesirable as it mismatches with the CTE of cathodes and anodes in SOFC. The present study investigates the thermophysical properties and oxidation behavior of an Nb-contained HEA (Cr₂₁Co₂₁Fe₂₁Ni₂₁Mn₁₁Nb₅) to achieve reduced CTE and improved oxidation properties than the existing interconnect HEAs. The novel Cr₂₁Co₂₁Fe₂₁Ni₂₁Mn₁₁Nb₅ HEA was produced by the vacuum arc melting technique. The structure, chemical composition, mechanical properties, CTE, and thermal stability of the HEA were investigated. The oxidation study was also carried out by oxidizing the as-cast HEA at 800 °C for 25, 50, 100, and 200 hours. The study revealed that the presence of Nb reduces the CTE, increases oxidation resistance, and improves the mechanical properties of the HEA. The harmful Chromium oxide layer does not appear on the top of the thermally grown oxide layer during oxidation of the HEA. This passivation of the Chromium oxide layer will significantly reduce the Cr-poisoning in SOFC.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 5","pages":"4253 - 4263"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147335803","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"On the Development of 3D-Printed e-Skin of Polyvinylidene Fluoride-Sm Doped ZnO Composite","authors":"Minhaz Husain,&nbsp;Vinay Kumar,&nbsp;Gurwinder Singh,&nbsp;Ranvijay Kumar,&nbsp;Rupinder Singh","doi":"10.1007/s11665-025-12820-z","DOIUrl":"10.1007/s11665-025-12820-z","url":null,"abstract":"<div><p>Recently, studies have been reported on ZnO and rare-earth metal-doped ZnO nanofillers for sensing applications. However, little has been testified on the doping of Sm in ZnO for the possible 3D printing of the polyvinylidene fluoride (PVDF) matrix for electronic (e)-skin applications. This study reports the development of PVDF-Sm doped ZnO composite-based filaments for further processing by 3D printing (material extrusion) (for e-skin applications). The various compositions/proportions of PVDF composites were prepared by varying PVDF (94-100 wt.%) and Sm-doped ZnO reinforcement (1-6 wt.%). The results suggest that the sample with a composition of 97% PVDF-3% (Sm-1-Doped-ZnO) and a melt flow index (MFI) (per ASTM D-1238) of 8.51 g/(10 min) was selected as the best option for possible e-skin 3D printing based on various material characterizations. The selected sample has a maximum Young’s modulus (<i>E</i>) of 558.91 MPa, with a greater presence of <i>β</i>-phase [observed in Fourier transformation infrared (FTIR) spectroscopy]. The maximum heat absorbed during melting (− 40.54 J/g) and maximum heat release during cooling (48.21 J/g) (highlighting kinetics–thermodynamics mismatch) due to partially crystalline behavior ensured by differential scanning calorimetry (DSC), and maximum percentage of residue (31.2611%) observed after the thermogravimetric analysis (TGA), suggested that the selected sample has more crystalline behavior (compared to other available options) and is acceptable for the 3D printing of e-skin. The morphological analysis based on scanning electron microscopy (SEM), porosity (%) (per ASTM-B-276), and grain size number (per ASTM-E112) supported the result.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16785 - 16795"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829098","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"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 Sn Microalloying on the Microstructure and Properties of FeCrAl Alloy for Nuclear Fuel Cladding","authors":"Jie Pan,&nbsp;Lizhen Zhan,&nbsp;Xudong Zhao,&nbsp;Chao Zhang,&nbsp;Ping Cao,&nbsp;Cheng Su,&nbsp;Cong Li,&nbsp;Jun Li,&nbsp;Xueshan Xiao","doi":"10.1007/s11665-025-12822-x","DOIUrl":"10.1007/s11665-025-12822-x","url":null,"abstract":"<div><p>The influence of Sn on the microstructure, mechanical properties, and solidification process of Fe-12Cr-6Al-2Mo-0.5Nb-0.1Y-xSn (<i>x</i> = 0, 0.15) alloys was investigated. The addition of Sn refined the grains of the alloy, resulting in an increase in hardness and strength at room temperature. The internal stress of the containing-Sn alloy was reduced during solidification, which inhibited the formation of microcracks in the ingot. The addition of Sn did not significantly worsen the high-temperature tensile strength of the alloys, especially above 1000 °C. The fracture surface shrinkage of both alloys at high temperatures and different strain rates exceeded 80%, indicating excellent hot workability. The addition of Sn improved the microstructure and properties of the FeCrAl alloy, which played an important role in the further study of FeCrAl alloys for fuel cladding materials.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16987 - 17002"},"PeriodicalIF":2.0,"publicationDate":"2025-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829196","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Additive Manufacturing of Ti-Based Alloys: Microstructure, Mechanical Properties, and Corrosion Behavior","authors":"E. Baharzadeh,&nbsp;M. Rafiei,&nbsp;H. Mostaan,&nbsp;M. Keshavarz,&nbsp;S. Abazari,&nbsp;J. W. Drelich,&nbsp;J. Goldman,&nbsp;Xiongbiao Chen,&nbsp;A. Motaharinia,&nbsp;H. R. Bakhsheshi-Rad","doi":"10.1007/s11665-025-12696-z","DOIUrl":"10.1007/s11665-025-12696-z","url":null,"abstract":"<div><p>Implementation of rapid prototyping additive manufacturing (AM) has revolutionized and accelerated applications of materials in manufacturing aviation components, personalized prosthetics, and implants with complex geometries and microstructures. Due to its highly-versatile material processing and precise structure control, AM has been widely employed in manufacturing titanium (Ti) and its alloys, as seen in AM-based techniques, including fused deposition modeling (FDM), techniques based on powder bed fusion (PBF) including selective laser sintering (SLS), selective laser melting (SLM), and electron beam melting (EBM), and methods based on direct energy deposition (DED) such as laser engineered net shaping (LENS) and wire arc additive manufacturing (WAAM). Processing Ti alloys, however, is a challenging task due to its complications associated with the processing parameters and the influences on structures and properties of manufactured parts or products. In this paper, we review the AM of Ti and its alloys, focusing on the microstructure of AMed Ti-based parts or products and their mechanical and corrosion properties. This study also addresses the potential of AM methods for the production of complicated components, including cellular structures, and their utilization in the aviation and medical fields. Key challenges and trends of the FDM, PBF-based, and DED methods are also identified and discussed, along with recommendations for future studies on AM-fabricated Ti alloys for improved properties.</p><h3>Graphical Abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture><span>The alternative text for this image may have been generated using AI.</span></div></div></figure></div></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16380 - 16420"},"PeriodicalIF":2.0,"publicationDate":"2025-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829813","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microstructure and Mechanical Properties of the 316L/Ni/Ti6Al4V FGM Fabricated by Laser-Directed Energy Deposition","authors":"Yuan Sui,&nbsp;Junqi Shen,&nbsp;Shengsun Hu,&nbsp;Changle Sun,&nbsp;Naisheng Hu,&nbsp;Keping Geng","doi":"10.1007/s11665-025-12843-6","DOIUrl":"10.1007/s11665-025-12843-6","url":null,"abstract":"<div><p>The 316L/Ni/Ti6Al4V functionally graded material (FGM) samples with Ni composition gradient of 25 vol.% were designed and fabricated by laser-directed energy deposition (L-DED), and the microstructure and mechanical properties of the samples were investigated. Within the 316L/Ni gradient region, the microstructure showed a trend of transition from cellular grains to dendrites, and then back to cellular grains as the Ni content increased. Within the Ni/Ti6Al4V gradient region, several types of Ni-Ti intermetallic compounds (IMCs), such as TiNi₃, TiNi and Ti₂Ni, were formed. The microhardness displayed a linear reduction trend as the Ni content increased within the 316L/Ni gradient region, and it reached maximum value of 586.1 HV_0.5 in the 75 vol.% Ni + 25 vol.% Ti6Al4V region within the Ni/Ti6Al4V gradient region. The fabricated 316L/Ni/Ti6Al4V FGM had an average tensile strength of 225.4 ± 10.7 MPa and an average elongation of 0.96 ± 0.11%, both higher than those of the 316L/Ti6Al4V bimetallic structure (BS) with Ni interlayer fabricated by L-DED<b>.</b> The 316L/Ni and Ni/Ti6Al4V gradient region samples, and 316L/Ti6Al4V BS with Ni interlayer had average compressive strengths of 1166.4, 666.0, and 700.8 MPa, respectively.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16811 - 16820"},"PeriodicalIF":2.0,"publicationDate":"2025-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829815","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on Multimodal Microstructural Evolution and Fatigue Performance Enhancement of Selective Laser Melting TA15 Titanium Alloy Induced by Shot Peening","authors":"Pengbo Gao,&nbsp;Fei Lv,&nbsp;Deqiao Xie,&nbsp;Yang Liu,&nbsp;Xuesong Gao,&nbsp;Meng Xiao,&nbsp;Zongjun Tian","doi":"10.1007/s11665-025-12844-5","DOIUrl":"10.1007/s11665-025-12844-5","url":null,"abstract":"<div><p>This study systematically analyzed the impact of shot peening on the surface quality of the SLM-TA15 alloy, elucidating the mechanism of fatigue behavior alteration through microstructural evolution, residual stress distribution, and high-cycle fatigue fracture analysis. The experimental results indicate that a shot peening intensity of 0.35 mmA is near the best parameters for the shot peening process, achieving a balance between surface morphology control and subsurface microstructure. The surface tensile residual stress was entirely converted into compressive residual stress, reaching a maximum value of − 900 MPa. The sample exhibited the highest fatigue life across various fatigue loads, with a fatigue limit strength of 740 MPa, representing a 68.1% increase compared to the non-shot peening sample. The elevated density of dislocations and deformation twins induced by shot peening prolonged the nucleation period of the crack source, whereas the compressive residual stress diminished the rate of stable fracture propagation. Moreover, excessive intensity of shot peening will diminish fatigue performance, leading to a reduction in the strengthening effect. In conclusion, shot peening is an efficacious technique for enhancing the surface stress state and fatigue performance of SLM-TA15 alloy, thereby augmenting the viability of SLM-TA15 alloy components in engineering technology and offering a significant reference for achieving stable quality and high-performance additive manufacturing components.</p></div>","PeriodicalId":644,"journal":{"name":"Journal of Materials Engineering and Performance","volume":"35 17","pages":"16747 - 16762"},"PeriodicalIF":2.0,"publicationDate":"2025-11-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147829818","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}