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Unveiling the role of heat treatment approaches in tailoring corrosion performance of laser powder-directed energy deposited SS304 揭示热处理方法在激光粉末定向能沉积SS304腐蚀性能中的作用
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-06-01 DOI: 10.1016/j.matlet.2025.138865
Jinsyam Sasindran , Jinoop Arackal Narayanan , Ingilela Aswith Babu , A.S.S. Balan , Hosmat Suresh Hebbar , Srikanth Bontha
{"title":"Unveiling the role of heat treatment approaches in tailoring corrosion performance of laser powder-directed energy deposited SS304","authors":"Jinsyam Sasindran ,&nbsp;Jinoop Arackal Narayanan ,&nbsp;Ingilela Aswith Babu ,&nbsp;A.S.S. Balan ,&nbsp;Hosmat Suresh Hebbar ,&nbsp;Srikanth Bontha","doi":"10.1016/j.matlet.2025.138865","DOIUrl":"10.1016/j.matlet.2025.138865","url":null,"abstract":"<div><div>This study investigates the effect of different post-processing heat treatment approaches on the corrosion behavior of Laser Powder-Directed Energy Deposited (LP-DED) SS304. Samples were fabricated using optimized LP-DED parameters: laser power of 400  W, scan speed of 800  mm/min, feed rate of 4 g/min, 0.6 mm beam diameter, and 33 % track overlap.Electrochemical analysis revealed significant differences in corrosion performance depending on the applied heat treatment approach. This treatment resulted in changes to residual stress, microstructure, and oxide layer characteristics which together influence the corrosion rate (CR). The stress-relief annealed (SRA) samples significantly improved corrosion resistance by up to 90 % compared to the as-built condition, while preserving the fine microstructure formed during the LP-DED process and maintaining a stable protective oxide layer. Solution treated and different quenched samples exhibited varying CR depending on the cooling rate and resulting coarse grain structure. These findings highlight the significant influence of post-processing heat treatments on corrosion behavior and microstructural characteristics.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"398 ","pages":"Article 138865"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144212202","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}
引用次数: 0
One-dimensional covalent organic framework for silver ion detection 用于银离子检测的一维共价有机框架
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-06-01 DOI: 10.1016/j.matlet.2025.138856
Yeqian Ruan, Xuan Kuang
{"title":"One-dimensional covalent organic framework for silver ion detection","authors":"Yeqian Ruan,&nbsp;Xuan Kuang","doi":"10.1016/j.matlet.2025.138856","DOIUrl":"10.1016/j.matlet.2025.138856","url":null,"abstract":"<div><div>A one-dimensional covalent organic framework (PMDA-DACH) was synthesized and employed as an electrochemiluminescence (ECL) sensor for Ag<sup>+</sup> detection. The sensor showed high sensitivity, a wide linear dynamic range, and a LOD of 0.09 nM. This platform provides a new method for detecting and quantifying metal ions, with potential for environmental monitoring and the analysis of chiral compounds.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"398 ","pages":"Article 138856"},"PeriodicalIF":2.7,"publicationDate":"2025-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144203965","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}
引用次数: 0
Surface stability of Mo-based compositionally complex alloys and evidence of radiation-induced dynamic recrystallization 钼基复合合金的表面稳定性及辐射诱导动态再结晶的证据
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-31 DOI: 10.1016/j.matlet.2025.138862
Emily H. Mang , Yongqiang Wang , Mitra L. Taheri
{"title":"Surface stability of Mo-based compositionally complex alloys and evidence of radiation-induced dynamic recrystallization","authors":"Emily H. Mang ,&nbsp;Yongqiang Wang ,&nbsp;Mitra L. Taheri","doi":"10.1016/j.matlet.2025.138862","DOIUrl":"10.1016/j.matlet.2025.138862","url":null,"abstract":"<div><div>Body-centered cubic (BCC) compositionally complex alloys (CCAs) are promising candidate materials for nuclear reactor components due to their exceptional high-temperature strength, void swelling resistance, and suppression of radiation-induced damage. This study investigates the influence of chemical additions in single-phase Mo-based alloys and the corresponding microstructural response to extreme ion implantation. Using advanced characterization techniques, we observe radiation-induced surface modification including evidence of dynamic recrystallization in concert with helium bubble suppression that is emphasized within concentrated alloys. This study offers experimental insight toward recrystallization within CCAs, highlighting the potential for alloying to induce dynamic microstructural transformations under irradiation that may be tuned in the development of more radiation-tolerant materials.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138862"},"PeriodicalIF":2.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195034","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}
引用次数: 0
Enhancing the corrosion resistance of selective laser melting Ti6Al4V alloy by hot stamping post-treatment 采用热冲压后处理提高选择性激光熔化Ti6Al4V合金的耐蚀性
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-31 DOI: 10.1016/j.matlet.2025.138864
Xueping Ding, Yinying Zhou, Guofeng Luo, Kehan Li, Xiaoming Nie, Songyan Jia
{"title":"Enhancing the corrosion resistance of selective laser melting Ti6Al4V alloy by hot stamping post-treatment","authors":"Xueping Ding,&nbsp;Yinying Zhou,&nbsp;Guofeng Luo,&nbsp;Kehan Li,&nbsp;Xiaoming Nie,&nbsp;Songyan Jia","doi":"10.1016/j.matlet.2025.138864","DOIUrl":"10.1016/j.matlet.2025.138864","url":null,"abstract":"<div><div>In this study, the selective laser melting Ti6Al4V alloy was modified for the first time by hot stamping post-treatment. The hot stamping treatment improved corrosion resistance, almost 2.38 times the selective laser melting sample. The improved corrosion resistance was attributed to the reduction of porosity with 67.7 % (0.62 % → 0.20 %) and average grain size with 29.9 % (3.65 μm → 2.56 μm) while the increase of β phase fraction with 368.8 % (0.16 % → 0.75 %) and low angle grain boudary fraction with 57.4 % (15.34 % → 24.15 %). Hence, this study concluded that the hot stamping treatment was a feasible method to enhance the corrosion resistance of selective laser melting Ti6Al4V alloy.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138864"},"PeriodicalIF":2.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195035","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}
引用次数: 0
Effects of pulsed current-assisted LDM on pore distribution and microstructure evolution of fabricated TC4 multi-layer structures 脉冲电流辅助LDM对制备TC4多层结构孔隙分布及微观结构演化的影响
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-31 DOI: 10.1016/j.matlet.2025.138861
Yi Wang , Xinlin Wang , Mengru You , Haihan Li
{"title":"Effects of pulsed current-assisted LDM on pore distribution and microstructure evolution of fabricated TC4 multi-layer structures","authors":"Yi Wang ,&nbsp;Xinlin Wang ,&nbsp;Mengru You ,&nbsp;Haihan Li","doi":"10.1016/j.matlet.2025.138861","DOIUrl":"10.1016/j.matlet.2025.138861","url":null,"abstract":"<div><div>The study investigated the effects of pulsed current on the pore distribution and microstructural phase transitions in different regions of TC4 titanium alloy during single-track multi-layer laser direct deposition. The results revealed that the pulsed current significantly reduced the porosity and pore size in the bottom region of the deposited layers, while the effect of reducing the porosity in the middle and top regions was relatively limited. The combined effects of Joule heating and electron wind force facilitated the diffusion of V elements and the atomic migration of the <em>β</em> phase in TC4, thereby influencing the morphology of primary <em>β</em> grains and secondary <em>α</em> grains.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138861"},"PeriodicalIF":2.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144195036","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}
引用次数: 0
Microstructure and mechanical properties modification through in-situ heat treatment of AlSi10Mg/CNTs Composites prepared through additive manufacturing 通过原位热处理改性增材制造制备的AlSi10Mg/CNTs复合材料的组织和力学性能
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-31 DOI: 10.1016/j.matlet.2025.138863
Bishnu Nand yadav , Dilip Muchhala , Jitendar Kumar Tiwari , Pei-Chen Huang , De-Shin Liu , Pai Chen Lin
{"title":"Microstructure and mechanical properties modification through in-situ heat treatment of AlSi10Mg/CNTs Composites prepared through additive manufacturing","authors":"Bishnu Nand yadav ,&nbsp;Dilip Muchhala ,&nbsp;Jitendar Kumar Tiwari ,&nbsp;Pei-Chen Huang ,&nbsp;De-Shin Liu ,&nbsp;Pai Chen Lin","doi":"10.1016/j.matlet.2025.138863","DOIUrl":"10.1016/j.matlet.2025.138863","url":null,"abstract":"<div><div>Current study investigates the microstructure and mechanical properties of additively manufactured AlSi10Mg/CNTs composites using in-situ heat treatment and annealing. In this work, different weight percentages (wt. %) of CNTs (0 wt. %, 0.2 wt. %, and 0.4 wt. %) were mixed with the AlSi10Mg alloy powder. The powder mixture was then processed using laser powder bed fusion process by implementing bi-directional scanning strategy with single scan (SS) and double scan (DS, also called as in-situ heat treated). The printed samples were further annealed at 350°C and 500°C for 1 hour. The results indicate that strength and ductility increase in DS samples significantly compared to those of SS samples.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"398 ","pages":"Article 138863"},"PeriodicalIF":2.7,"publicationDate":"2025-05-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144203909","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}
引用次数: 0
Bismuth selenide nanoparticles prepared by hot injection with cyclic selenourea as source of selenide 以环硒脲为硒源，热注射法制备硒化铋纳米颗粒
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-30 DOI: 10.1016/j.matlet.2025.138859
Claudia P. Villamizar C., M.T.S. Nair, P.K. Nair
{"title":"Bismuth selenide nanoparticles prepared by hot injection with cyclic selenourea as source of selenide","authors":"Claudia P. Villamizar C.,&nbsp;M.T.S. Nair,&nbsp;P.K. Nair","doi":"10.1016/j.matlet.2025.138859","DOIUrl":"10.1016/j.matlet.2025.138859","url":null,"abstract":"<div><div>Nanoparticles of Bi<sub>2</sub>Se<sub>3</sub> were prepared by hot injection method using 1,3-dimethyl-1H-benzo[d]imidazole-2(3H)-selenone as selenide source and different solvents: triethanolamine, oleylamine, and oleic acid. X-ray diffraction (XRD) patterns confirm a rhombohedral crystal structure of the material, with a crystallite size of 13–19 nm, and FESEM shows the material as hexagonal nanosheets. It has an indirect band gap, E<sub>g</sub>, of 0.78 eV.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138859"},"PeriodicalIF":2.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144203977","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}
引用次数: 0
A facile synthesis of high entropy alloy nanoparticles and notable catalytic activity for methylene blue degradation 高熵合金纳米颗粒的简单合成及其对亚甲基蓝降解的显著催化活性
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-30 DOI: 10.1016/j.matlet.2025.138854
Yogesh Kumar Yadav , Sarita Yadav , Mohammad Abu Shaz , Thakur Prasad Yadav
{"title":"A facile synthesis of high entropy alloy nanoparticles and notable catalytic activity for methylene blue degradation","authors":"Yogesh Kumar Yadav ,&nbsp;Sarita Yadav ,&nbsp;Mohammad Abu Shaz ,&nbsp;Thakur Prasad Yadav","doi":"10.1016/j.matlet.2025.138854","DOIUrl":"10.1016/j.matlet.2025.138854","url":null,"abstract":"<div><div>In this study, mechanical ball milling has been used to synthesize a<!--> <!-->nanocrystalline Al-Cu-Fe-Ni-Ti high-entropy alloy (HEA) through controlled composition and processing parameters. Using hexane as the process control agent, the milling has been carried out in a high-energy attritor ball mill at 400 rpm for 40 h with a 40:1 ball-to-powder ratio. The development of a single-phase BCC structure with a lattice parameter of 0.289 nm has been verified by X-ray diffraction investigation. Furthermore, when tested for methylene blue degradation, its catalytic performance resulted in a 32 % decrease in absorbance at 664 nm in 20 min, with degradation continuing for 240 min.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138854"},"PeriodicalIF":2.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144185322","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}
引用次数: 0
Improving shape memory effect of the (CrFeMn)60Co35Ni4.8C0.2 high-entropy alloy single crystals with FCC–HCP martensitic transformation via alloying carbon atoms 通过合金化碳原子改善FCC-HCP马氏体相变（CrFeMn）60Co35Ni4.8C0.2高熵合金单晶的形状记忆效应
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-30 DOI: 10.1016/j.matlet.2025.138851
I.V. Kireeva, Yu. I. Chumlyakov, A.A. Saraeva, D.A. Kuksgauzen
{"title":"Improving shape memory effect of the (CrFeMn)60Co35Ni4.8C0.2 high-entropy alloy single crystals with FCC–HCP martensitic transformation via alloying carbon atoms","authors":"I.V. Kireeva,&nbsp;Yu. I. Chumlyakov,&nbsp;A.A. Saraeva,&nbsp;D.A. Kuksgauzen","doi":"10.1016/j.matlet.2025.138851","DOIUrl":"10.1016/j.matlet.2025.138851","url":null,"abstract":"<div><div>For the first time, in the <span><math><mrow><mo>[</mo><mover><mrow><mn>1</mn></mrow><mrow><mo>¯</mo></mrow></mover><mn>44</mn><mo>]</mo></mrow></math></span>−oriented (CrFeMn)<sub>60</sub>Co<sub>35</sub>Ni<sub>4.8</sub>C<sub>0.2</sub> high-entropy alloy crystals, under tension in a “load-unloading” cycle and subsequent heating in a free state, a shape memory effect (SME) of 17 % was obtained for the FCC–HCP martensitic transformation (MT), close to theoretical value of the transformation strain of 17.5 % for this orientation. In “cooling-heating” cycle under stress, the maximum SME was 13.8 % at stress of σ<sub>ex</sub> = 150 MPa. The competition between the plastic deformation of the FCC phase and FCC–HCP MT during cooling under stress at σ<sub>ex</sub> &gt; 150 MPa does not allow obtaining SME greater than 13.8 %.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138851"},"PeriodicalIF":2.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144203978","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}
引用次数: 0
Evolution of NbC from nucleation and precipitation to growth and coarsening in Nb-microalloyed high-carbon martensitic steel 铌微合金高碳马氏体钢中NbC从形核析出到生长粗化的演变
IF 2.7 4区 材料科学
Materials Letters Pub Date : 2025-05-30 DOI: 10.1016/j.matlet.2025.138860
Di Wang, Jun Xiao, Kuo Cao, Shaoguang Yang, Aimin Zhao
{"title":"Evolution of NbC from nucleation and precipitation to growth and coarsening in Nb-microalloyed high-carbon martensitic steel","authors":"Di Wang,&nbsp;Jun Xiao,&nbsp;Kuo Cao,&nbsp;Shaoguang Yang,&nbsp;Aimin Zhao","doi":"10.1016/j.matlet.2025.138860","DOIUrl":"10.1016/j.matlet.2025.138860","url":null,"abstract":"<div><div>This study focuses on the dynamic evolution of NbC from nucleation and precipitation to coarsening in synergy with Mo. The results show that carbon diffusion drives the precipitation of Nb-C clusters from the supersaturated austenite, forming NbC precipitates smaller than 5 nm. As the NbC particles grow to ∼200 nm, Mo atoms gradually substitute Nb sites via diffusion, resulting in compositionally graded (Nb,Mo)C complex carbides, with Mo content increasing monotonically with particle size. Initially, the (Nb,Mo)C particles exhibit a near-spherical morphology. In the late stage of coarsening (&gt;500 nm), they gradually transform into irregular polyhedral shapes, accompanied by a decrease in proportion of Mo content.</div></div>","PeriodicalId":384,"journal":{"name":"Materials Letters","volume":"397 ","pages":"Article 138860"},"PeriodicalIF":2.7,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144189859","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}
引用次数: 0
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