Journal of Alloys and Compounds最新文献_第3页

Electromagnetic shock treatment of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy: triple junction network, texture and deformation mechanisms Ti-6.5Al-3.5Mo-1.5Zr-0.3Si合金的电磁冲击处理：三重结网络、织构及变形机理

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182676

Jian Zhou, Hongxin Sun, Chang Liu, Yan Wen, Liqiang Wang, Lai-Chang Zhang, Lechun Xie, Lin Hua

{"title":"Electromagnetic shock treatment of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy: triple junction network, texture and deformation mechanisms","authors":"Jian Zhou, Hongxin Sun, Chang Liu, Yan Wen, Liqiang Wang, Lai-Chang Zhang, Lechun Xie, Lin Hua","doi":"10.1016/j.jallcom.2025.182676","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182676","url":null,"abstract":"A novel energy-efficient electromagnetic shock treatment (EMST) method was proposed to enhance grain boundary connectivity and improve mechanical properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si alloy. Based on grain boundary network, this work systematically evaluated the stability and connectivity of the triple junction (TJ) network under EMST and further verified it through uniaxial tension and nanoindentation. Additionally, the phase structure, grain roundness (<em>R</em><sub><em>nc</em></sub>), texture and deformation mechanisms were thoroughly investigated. The results indicated that EMST can directly regulate the TJ network, and the number of TJ significantly increased, which facilitated crack nucleation and had adverse effect on plasticity. The difference in dihedral angles of TJ decreased, which enhanced the stability of the TJ network and facilitated to improve tensile strength, which was well validated by tensile experiments. Another interesting phenomenon was that the synergistic effect of electric current and magnetic field leads to the formation of equiaxed grains. Nanoindentation experiments revealed the consistency of indentation behavior weakened at a current density of 26.7 A/mm<sup>2</sup>, whereas it was enhanced at 50 A/mm<sup>2</sup>. This work suggested that EMST was an effective method to optimize grain boundary connectivity and mechanical properties.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"15 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748069","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Microstructure evolution and deformation behavior of continuously cast Ti-44Al-5Nb-2.5Cr-1.5V alloy during thermal compression 连铸Ti-44Al-5Nb-2.5Cr-1.5V合金热压缩过程中的组织演变及变形行为

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182679

Yuanzi Gong , Qiang Wang , Hui Du , Wei Xu , Po Zhang , Le Gu , Hongsheng Ding , Ruirun Chen , Jingjie Guo

{"title":"Microstructure evolution and deformation behavior of continuously cast Ti-44Al-5Nb-2.5Cr-1.5V alloy during thermal compression","authors":"Yuanzi Gong , Qiang Wang , Hui Du , Wei Xu , Po Zhang , Le Gu , Hongsheng Ding , Ruirun Chen , Jingjie Guo","doi":"10.1016/j.jallcom.2025.182679","DOIUrl":"10.1016/j.jallcom.2025.182679","url":null,"abstract":"<div><div>In this work, the microstructure evolution and deformation behavior of continuously cast Ti-44Al-5Nb-2.5Cr-1.5 V alloy undergone thermal compression were investigated in detail. Experimental results revealed that with the increase of compression strain, the lamellae changed from bending in a single direction to alternating bending in two opposite directions, until they broke into multiple segments perpendicular to the compressive axis. The dynamic recrystallized (DRX) grains preferentially nucleated at the kink of the lamellae, and there was no specific orientation relationship between the newly formed DRX grains. In the process of thermal compression, the localized migration of the lamellar interface occurred, leading to the bulging of the interface and local coarsening of the lamellae. The dislocation dissociation produced stacking faults, providing the necessary structural prerequisites for the phase transition of α<sub>2</sub>→γ or γ→α<sub>2</sub>. Moreover, the interface sliding kinetics controlled by dislocation-climb and dislocation-glide respectively have been established, revealing that the increase in the lamellae width suppress interface sliding.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182679"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747765","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Room-temperature spontaneous sulfur doping of Ag2Se for flexible thermoelectric generators 柔性热电发电机用Ag2Se室温自发硫掺杂

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182586

Huanyu Chen , Xia Xiang , Minghui Xu , Ying Zhao , Wenfeng Sun , Xiaohe Ren , Shuwen Xue , Sean Li , Yangfang Li , Xiaotao Zu

{"title":"Room-temperature spontaneous sulfur doping of Ag2Se for flexible thermoelectric generators","authors":"Huanyu Chen , Xia Xiang , Minghui Xu , Ying Zhao , Wenfeng Sun , Xiaohe Ren , Shuwen Xue , Sean Li , Yangfang Li , Xiaotao Zu","doi":"10.1016/j.jallcom.2025.182586","DOIUrl":"10.1016/j.jallcom.2025.182586","url":null,"abstract":"<div><div>Silver selenide (Ag<sub>2</sub>Se) is a promising material for near room-temperature (RT) thermoelectric generators (TEGs). However, conventional high-temperature solid-phase and gas-phase synthesis methods suffer from high energy consumption, limited component design, and poor material uniformity. Although liquid-phase synthesis offers better control, it typically requires harsh reaction conditions. Moreover, thermodynamic constraints hinder effective doping optimization under mild conditions, thereby limiting the enhancement of the intrinsic thermoelectric (TE) properties of Ag<sub>2</sub>Se. This work develops a spontaneous doping strategy at RT to enable the rapid synthesis of sulfur-doped Ag<sub>2</sub>Se (S:Ag<sub>2</sub>Se). Using silver chloride (AgCl) as the raw material, and sodium sulfite (Na<sub>2</sub>SO<sub>3</sub>) acts as a Lewis base ligand to spontaneously form a selenium-centered chalcogenide bond (S-Se bond) with SeO<sub>2</sub>, achieving the adsorption of S atoms on the initial crystal surface. Adjusting the S/Se ratio in the precursor enables precise control of crystal growth and overcomes RT-doping limitations to synthesize S:Ag<sub>2</sub>Se with tunable sulfur content. The S:Ag<sub>2</sub>Se TE films prepared by screen printing technology demonstrate an outstanding power factor (PF) of 915 µW m⁻¹ K⁻² at RT, surpassing previously reported RT-prepared Ag<sub>2</sub>Se/polymer flexible TE films. Additionally, the six legs TEGs fabricated from the optimized S:Ag<sub>2</sub>Se films generate a maximum power output of 27.84 nW at a temperature difference (∆T) of 38.70 K, highlighting their notable efficiency in low-grade heat harvesting. This work presents an economical and facile method to fabricate high-performance flexible S:Ag<sub>2</sub>Se TE films, enabling their integration into wearable energy devices.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182586"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747775","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel S-scheme structure via the combination of high and low doping of CdS with boosted tetracycline antibiotics removal 通过高掺杂和低掺杂cd的结合，促进四环素抗生素去除的新型s结构

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182677

Aihui Chen, Mengjie Chen, Tianwei Lu, Yuyin Chen, Haoran Ji, Lei Zhang

{"title":"A novel S-scheme structure via the combination of high and low doping of CdS with boosted tetracycline antibiotics removal","authors":"Aihui Chen, Mengjie Chen, Tianwei Lu, Yuyin Chen, Haoran Ji, Lei Zhang","doi":"10.1016/j.jallcom.2025.182677","DOIUrl":"10.1016/j.jallcom.2025.182677","url":null,"abstract":"<div><div>Antibiotics are classified as persistent organic pollutants (POPs) due to their environmental persistence and significant risks to human health. S-scheme heterojunctions exhibit strong potential for the removal of organic pollutants owing to their unique electron transfer mechanisms. In this study, a novel S-scheme structure was constructed using a high–low doping strategy applied to CdS for the degradation of tetracycline (TC). The Cd<sub>0.8</sub>Mn<sub>0.2</sub>S/Cd<sub>0.2</sub>Mn<sub>0.8</sub>S (CMS-2) sample exhibited superior photocatalytic activity, achieving 100 % degradation of TC within 30 min, compared to 75.3 % for pure CdS. The as-prepared heterojunction generated an internal electric field (IEF) at the interface between Cd<sub>0.8</sub>Mn<sub>0.2</sub>S and Cd<sub>0.2</sub>Mn<sub>0.8</sub>S due to their differing work functions. The IEF facilitated charge transfer and drove photoexcited electrons from Cd<sub>0.2</sub>Mn<sub>0.8</sub>S to Cd<sub>0.8</sub>Mn<sub>0.2</sub>S under visible-light irradiation, thereby enhancing the separation of photogenerated electron-hole pairs. This study demonstrates a simple and effective approach for constructing S-scheme heterojunctions to improve solar energy utilization and conversion efficiency.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182677"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Formation of multistage gradient structure and enhancement of properties in Zn-1.5Cu-0.5Ag-0.1Zr alloy Zn-1.5Cu-0.5Ag-0.1Zr合金多级梯度结构的形成及性能的增强

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182680

Ji Zhou , Jiaofeng Guo , Lei Yang , Yonglai Lai , Yong Liu , Hualan Jin

{"title":"Formation of multistage gradient structure and enhancement of properties in Zn-1.5Cu-0.5Ag-0.1Zr alloy","authors":"Ji Zhou , Jiaofeng Guo , Lei Yang , Yonglai Lai , Yong Liu , Hualan Jin","doi":"10.1016/j.jallcom.2025.182680","DOIUrl":"10.1016/j.jallcom.2025.182680","url":null,"abstract":"<div><div>Simultaneous enhancement of strength-plasticity-corrosion resistance triad in Zn-based alloys determines their viability as next-generation biodegradable implants. In this paper, the ultrasonic surface rolling process (USRP) was applied to prepare the Zn-1.5Cu-0.5Ag-0.1Zr alloy with multi-stage gradient structure (grain, twins, and second phase gradients). The USRP treatment constructed strength-ductility synergy because of the gradient-dominated strength improvement, while ductility enhancement originated from grain refinement, the presence of CuZn<sub>5</sub> phase, gradient structure, and surface roughness. The corrosion resistance reached a minimum rate of 20.86 μm/year at the rolling reduction of 0.20 mm and exhibited a significant refinement compared with the as-cast sample of 108.11 μm/year, which affected by surface roughness, residual stress, and grain boundary density. The influence of multistage gradient structure on mechanical properties and corrosion resistance was systematically analyzed. This study provides a new insight to prepare Zn-based alloys with multistage gradient structure for clinical applications.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182680"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Size effect of Cu-Al alloys with different stacking fault energies 不同层错能Cu-Al合金的尺寸效应

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182682

Z.Y. Wang , S.Y. Peng , J.H. Wang , Y.Z. Tian

{"title":"Size effect of Cu-Al alloys with different stacking fault energies","authors":"Z.Y. Wang , S.Y. Peng , J.H. Wang , Y.Z. Tian","doi":"10.1016/j.jallcom.2025.182682","DOIUrl":"10.1016/j.jallcom.2025.182682","url":null,"abstract":"<div><div>The mechanical behavior of face-centered cubic (FCC) metals is significantly affected when limited grains are present in the cross section of specimen. We fixed the thickness of sheets, and studied the effect of grain size on the ductility of Cu-Al alloys with different stacking fault energies (SFEs). The ductility scales with grain size, but it starts to drop when the grain size is larger than a critical value (<em>d</em><sub>c</sub>). Notably, two groups of critical grain size <em>d</em><sub>c</sub> were revealed, which show close correlation with SFE. High <em>d</em><sub>c</sub> (24.9–28.4 μm) is observed in low-SFE Cu-Al alloys (γ ≤ 15.8 mJ/m²), where deformation twinning is activated during tensile tests. In contrast, low <em>d</em><sub>c</sub> (11.2–11.9 μm) is found in medium-to-high SFE Cu-Al alloys (γ ≥ 22.5 mJ/m²), which exhibit dislocation slip. The deformation twinning introduces barriers to dislocation slip and dynamically refines the original grain size, which leads to a larger <em>d</em><sub>c</sub> and delays the appearance of specimen size effect in low-SFE alloys. This work bridges the size effect and SFE, and provides an accessible way to ameliorate the strength-ductility balance of miniature specimens through the twinning mechanism.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182682"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747766","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Tin-doped iridium-ruthenium solid solution oxide as an efficient anode catalyst for oxygen evolution and zinc electrolysis 锡掺杂铱钌固溶体氧化物作为析氧和锌电解的高效阳极催化剂

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182673

Lin Tian , Yanan Song , Xiaodong Zhuang , Ni Yang , Rui Xu , Huabin Wang , Yong Zhang

{"title":"Tin-doped iridium-ruthenium solid solution oxide as an efficient anode catalyst for oxygen evolution and zinc electrolysis","authors":"Lin Tian , Yanan Song , Xiaodong Zhuang , Ni Yang , Rui Xu , Huabin Wang , Yong Zhang","doi":"10.1016/j.jallcom.2025.182673","DOIUrl":"10.1016/j.jallcom.2025.182673","url":null,"abstract":"<div><div>Zinc is mainly extracted through wet electrolysis, and the anode is usually a lead silver alloy electrode, which has disadvantages such as high oxygen evolution potential and lead pollution. In this study, Ti/IrO<sub>2</sub>-RuO<sub>2</sub>-SnO<sub>2</sub> anodes with different Sn contents were prepared using thermal decomposition method. The added Sn appeared in the form of rutile (Ir Ru Sn) O<sub>2</sub> crystals, with a single crystal phase and a highly uniform atomic distribution of solid solution metal oxides. Due to the short distance between metal atoms, the redistribution of charges can be well regulated, resulting in changes in electronic structure. Therefore, the addition of Sn regulates the electronic structure and adsorption strength between the * O intermediate and the active sites of RuO<sub>2</sub> and IrO<sub>2</sub>, improving the OER performance. In addition, the average battery voltage and power consumption of Ti/IrO<sub>2</sub>-RuO<sub>2</sub>-SnO<sub>2</sub> (3 % molar ratio) anode are 330 mV and 295 kW h/t-Zn lower than those of lead silver (1 wt%) anode, respectively. The quality of zinc obtained on this electrode is much higher than the national standard and almost lead-free. Therefore, the prepared Ti/IrO<sub>2</sub>-RuO<sub>2</sub>-SnO<sub>2</sub> anode is expected to replace lead silver electrodes to solve lead pollution problems and achieve efficient and clean zinc electrolysis.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182673"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747769","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Enhanced formability and fracture resistance of a dilute Mg alloy sheet via Zn microalloying 通过锌微合金化提高稀镁合金板材的成形性能和抗断裂性能

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182654

An Yang, Hong Ning, Lu Xu, Hai-Xiao Zhang, Hui-Yuan Wang, Cheng Wang

{"title":"Enhanced formability and fracture resistance of a dilute Mg alloy sheet via Zn microalloying","authors":"An Yang, Hong Ning, Lu Xu, Hai-Xiao Zhang, Hui-Yuan Wang, Cheng Wang","doi":"10.1016/j.jallcom.2025.182654","DOIUrl":"10.1016/j.jallcom.2025.182654","url":null,"abstract":"<div><div>Development of high-performance magnesium (Mg) alloy sheets through efficient forming processes remains a major challenge in materials science. In this study, a novel Mg-1.2Zn-0.5Al-0.4Mn-0.2Ce (wt%, 1.2Zn) alloy with excellent mechanical properties has been exploited by rapid extrusion (extrusion speed 7.5 m/min) and controlled rolling, which is applicable in industrial production. The trace addition of Zn leads to remarkable enhancements in formability and ductility, as evidenced by a ∼100 % increase in the Index Erichsen (I.E.) value (reaching 6.6 mm) and a 52.6 % increase in the average fracture elongation (FEL) up to ∼29.0 %. Through systematic investigations, including interrupted Erichsen cupping tests and slip trace analysis, we elucidated the critical role of Zn addition in regulating microstructure evolution, activating deformation mechanisms, and enhancing fracture resistance in dilute Mg alloys. The improved I.E. value and FEL primarily originate from the modified ‘quadruple’ texture and the enhanced activation of tensile twinning and pyramidal 〈<em><strong>c</strong></em> <strong>+</strong> <em><strong>a</strong></em>〉 slips. Moreover, Zn-induced solute segregation at grain boundaries (GBs) significantly strengthens interfacial cohesion, effectively preventing intergranular crack initiation. The initiated multi-mode deformation mechanisms and improved fracture behavior comprehensively contribute to exceptional room-temperature ductility and formability. These findings provide valuable guidance for the efficient development of high-performance Mg alloy sheets through strategic alloying design.</div></div>","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1038 ","pages":"Article 182654"},"PeriodicalIF":6.3,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144748061","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A novel short-time heat treatment for stabilizing the compressive behavior of LPBF AlSi10Mg TPMS structures 一种稳定LPBF AlSi10Mg TPMS结构压缩性能的新型短时间热处理方法

IF 6.2 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182675

Yuhang Huang, Tianjiao Wang, Gang Nie, Jinwu Kang, Hailiang Yu

{"title":"A novel short-time heat treatment for stabilizing the compressive behavior of LPBF AlSi10Mg TPMS structures","authors":"Yuhang Huang, Tianjiao Wang, Gang Nie, Jinwu Kang, Hailiang Yu","doi":"10.1016/j.jallcom.2025.182675","DOIUrl":"https://doi.org/10.1016/j.jallcom.2025.182675","url":null,"abstract":"AlSi10Mg triply periodic minimal surface (TPMS) structures fabricated via laser powder bed fusion (LPBF) exhibit low density, high strength, and excellent energy absorption, making them ideal for lightweight applications. However, significant stress fluctuations (a 73.5% drop from peak stress) in as-built specimens during compression severely limit their energy absorption. Conventional T6 heat treatment (solution heat treatment at 530 °C for 2 h followed by artificial aging at 170 °C for 6 h) dissolves heterogeneous eutectic Si networks to suppress fluctuations, but its prolonged duration requires substantial energy input, conflicting with sustainable manufacturing goals. In this study, we propose a novel short-time heat treatment (STHT) at 530 °C for 2.5 min. STHT transforms eutectic Si networks into uniformly distributed fine Si particles with partial recrystallization, thereby stabilizing the compressive behavior. Moreover, STHT largely retains the strengthening mechanisms inherent to the as-built specimens. Therefore, the STHT-2.5 min and T6-treated specimens exhibited comparable energy absorption (47.2 vs. 46.4 MJ/m³). Critically, STHT reduced both processing time and energy consumption by 99.6% compared to T6 heat treatment. This study demonstrates STHT as a resource-efficient alternative to T6 heat treatment for stabilizing the compressive behavior of LPBF AlSi10Mg TPMS structures.","PeriodicalId":344,"journal":{"name":"Journal of Alloys and Compounds","volume":"1 1","pages":""},"PeriodicalIF":6.2,"publicationDate":"2025-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144747774","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Interfacial characteristics and their influence on stress relaxation in Cu-Ni-Co-Si alloys Cu-Ni-Co-Si合金界面特性及其对应力松弛的影响

IF 6.3 2区材料科学

Journal of Alloys and Compounds Pub Date : 2025-07-31 DOI: 10.1016/j.jallcom.2025.182688

Huaichao Peng, Chenyang Zhou, Weibin Xie, Huiming Chen

引用次数: 0