IF 2.1 4区材料科学

JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07209-1

Quanzhen Li, Chengming Li, Xiaojing Wang, Shanshan Cai, Ning Liu, Chen Liu, Shaofu Sun

{"title":"The Rate-Dependent Shear Performance of Ni-Stabilized SAC/Cu Joints Under Isothermal Aging","authors":"Quanzhen Li, Chengming Li, Xiaojing Wang, Shanshan Cai, Ning Liu, Chen Liu, Shaofu Sun","doi":"10.1007/s11837-025-07209-1","DOIUrl":"10.1007/s11837-025-07209-1","url":null,"abstract":"<div>xNi (x = 0.005, 0.01, 0.03, 0.05, and 0.07 wt.%) was doped into Sn-3.0Ag-0.5Cu (SAC305)/Cu joints to study the evolution of the microstructure and rate-dependent shear properties under isothermal aging (aged at 170 for 0, 250, 500 and 750 h). Compared with Ni-free joints, Ni doping can increase the low-speed (0.1 mm/s) shear strength fractured inside the joint alloy, while decreasing the high-speed (1000 mm/s) shear strength showing the intermetallic compound (IMC) property. In the xNi joint, Ni atoms partially replace Cu to form (Cu,Ni)6Sn5, which improves the hardness (H) and Young’s modulus (E) of Cu-Sn compounds, but decreases the E/H value from 18.6 to 17.8 which represents the plastic behavior of the IMCs. As the aging time extends, the inhibitory effect of Ni on the Cu6Sn5 IMC layer deteriorates, but the inhibition effect on the Cu3Sn layer is always better. This study is of great significance for controlling the growth of interfacial compounds, stabilizing the structure, and designing and strengthening the solder connections in electronic fabrication.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4173 - 4183"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091104","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

Microstructural Investigation of Sn-Based Solder Reactions with FeCoNiCrMn High-Entropy Alloy at Various Temperatures 不同温度下sn基钎料与FeCoNiCrMn高熵合金反应的显微组织研究

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07204-6

Chao-hong Wang, Yue-han Li

{"title":"Microstructural Investigation of Sn-Based Solder Reactions with FeCoNiCrMn High-Entropy Alloy at Various Temperatures","authors":"Chao-hong Wang, Yue-han Li","doi":"10.1007/s11837-025-07204-6","DOIUrl":"10.1007/s11837-025-07204-6","url":null,"abstract":"<div>The FeCoNiCrMn high-entropy alloy (HEA) system, regarded as a potential advanced diffusion barrier, was studied for its soldering reactions and interfacial stability with Sn-based solders across a temperature range of 250–700°C. Initially, the reactions exhibited uneven dissolution of the HEA substrate. During the Sn/HEA reactions between 250°C and 500°C, the (Fe,Cr,Co)Sn2 phase predominantly formed with a slow growth rate. Even after 48 h at 250°C, the interface remained stable. The (Fe,Cr,Co)Sn2 phase displayed two sublayers with slightly different contrasts and microstructures, suggesting different formation mechanisms. The sublayer near the HEA was dense, with higher Cr and lower Co content, formed via Sn diffusion. The other sublayer, closer to the solder, contained faceted grains that formed through HEA dissolution and precipitation. Oversaturated precipitation also resulted in the formation of large (Co,Ni)Sn3 grains. Additionally, when using Sn-3wt.%Ag-0.5wt.%Cu (SAC305) and Sn-0.5wt.%Cu solders, the sizes of the faceted (Fe,Cr,Co)Sn2 grains were significantly reduced. At 700°C, significant microstructural changes occurred due to severe dissolution. The dominant reaction phase shifted to (Fe,Cr,Co)Sn, and a CrSn2-solder mixture was confined to the original interface. The FeCoNiCrMn alloy demonstrated good wettability, sluggish (Fe,Cr,Co)Sn2 growth, and stable interfaces without phase spalling.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4161 - 4172"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091135","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

Study on the Recrystallized Microstructure Evolutions of Mg-Gd-Based Alloys Using Pre-aging and Element Substitution 利用预时效和元素置换研究镁钆基合金的再结晶微观结构演变

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07210-8

Chun Xi, Xiang Jiang, Mingao Li, Taku Sakai, Xuyue Yang, Qinghuan Huo

{"title":"Study on the Recrystallized Microstructure Evolutions of Mg-Gd-Based Alloys Using Pre-aging and Element Substitution","authors":"Chun Xi, Xiang Jiang, Mingao Li, Taku Sakai, Xuyue Yang, Qinghuan Huo","doi":"10.1007/s11837-025-07210-8","DOIUrl":"10.1007/s11837-025-07210-8","url":null,"abstract":"<div>To improve the strength of Mg-Gd-based alloys, two important points must be considered. One is the grain refinement degree during hot processing, and the other is the thermal stability of fine grains during final annealing or cooling. In this work, six samples with three different compositions, Mg-13Gd (G13), Mg-9Gd-4Y (GW94), and Mg-10Gd-3Nd (GN103), and two different heat treatments, as-solutioned (AS) and as-aged (AA) states, were used to study the recrystallized microstructure evolutions. The results of hot compression at 753 K showed that the AA-type samples had higher recrystallization fractions compared to the AS-type samples. However, the results of annealing at 673 K showed that sharp grain growth occurred in the AA-G13 and AA-GW94 samples and that the yield strengths were much lower compared to the AS-type samples. The exciting finding was the excellent thermal stability in the AA-GN103 sample, reflected by the conspicuous co-segregation of Gd and Nd solutes at the grain boundaries. The AA-GN103 sample had no obvious grain growth even after annealing over 300 min, and it exhibited the highest yield strength. Therefore, the mixed additions of Gd and Nd are strongly recommended for developing Mg-RE alloys with high strength and thermal stability.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2811 - 2824"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835646","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

Microstructural Evolution and Mechanical Performance of Magnesium-Niobium Composites with Potential for Biomedical Applications 具有生物医学应用潜力的镁铌复合材料的微结构演变和机械性能

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-18 DOI: 10.1007/s11837-025-07198-1

Rawad Yaqoub Aljabr, P. S. C. Bose

{"title":"Microstructural Evolution and Mechanical Performance of Magnesium-Niobium Composites with Potential for Biomedical Applications","authors":"Rawad Yaqoub Aljabr, P. S. C. Bose","doi":"10.1007/s11837-025-07198-1","DOIUrl":"10.1007/s11837-025-07198-1","url":null,"abstract":"<div>This study used the powder metallurgy technique to fabricate biocompatible niobium (Nb)-reinforced pure Mg matrix composites. The impact of Nb particulate contents (2.5 wt.%, 5 wt.%, 7.5 wt.%, 10 wt.%, 15 wt.%, and 20 wt.%) on the microstructure, density, mechanical properties and fracture behavior of the resulting composites was investigated. The results indicated a uniform distribution of Nb reinforcement particles with excellent interfacial bonding and minimal porosity. The addition of Nb slightly refined the grain structure. Mechanical tests revealed that dispersing Nb particles within the Mg matrix enhanced the composite's strength and hardness through load transfer, dislocation strengthening and grain boundary strengthening mechanisms. Furthermore, the even distribution of Nb reinforcements uniformly transferred load across the composite samples delaying fracture initiation and improving failure strain. Both pure Mg and Mg-Nb composites displayed a combination of brittle and shear fracture modes in their fracture behavior. The inclusion of 15 wt.% Nb significantly increased hardness (by 62%), compressive yield strength (by 89%), and failure strain (by 37.6%) compared to pure Mg.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2779 - 2796"},"PeriodicalIF":2.1,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835648","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 Review on High-Entropy Alloys Coatings Fabricated by Electrodeposition: The Correlation Between Composition, Properties and Processing Parameters 电沉积法制备高熵合金涂层及其组成、性能和工艺参数的关系

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-13 DOI: 10.1007/s11837-024-07122-z

Olga Nechvoglod, Ahmad Ostovari Moghaddam, Svetlana Pratskova, Svetlana Trofimova, Marina Samodurova, Evgeny Trofimov

{"title":"A Review on High-Entropy Alloys Coatings Fabricated by Electrodeposition: The Correlation Between Composition, Properties and Processing Parameters","authors":"Olga Nechvoglod, Ahmad Ostovari Moghaddam, Svetlana Pratskova, Svetlana Trofimova, Marina Samodurova, Evgeny Trofimov","doi":"10.1007/s11837-024-07122-z","DOIUrl":"10.1007/s11837-024-07122-z","url":null,"abstract":"<div>This work provides an overview on the fabrication process, composition and properties of high-entropy alloy (HEA) coatings fabricated by electrodeposition. Special attention is paid to the effect of electrodeposition parameters and electrolyte composition on the microstructure, morphology, and mechanical/functional properties of the HEA coatings. It is demonstrated that the majority of researches has been focused on fabricating CoCrFeMnNi- and AlCrFeMnNi-based HEAs, with the addition of a few other elements by galvanostatic and potentiostatic techniques using both direct and pulsed current deposition modes. The fabricated HEA coatings exhibited different microstructures ranging from amorphous to nanocrystalline structures, exhibiting interesting magnetic, catalytic, and mechanical properties. Furthermore, we show that, while the possibility of fabricating metal matrix nanocomposite coatings using electrodeposition has been demonstrated, the fabricated composite coatings are mainly limited to transition element-based HEAs reinforced by graphene oxide and carbon nanotubes. Finally, several new directions and potential challenges such as electrochemical deposition of refractory HEAs and metal matrix composites reinforced by HEAs or high-entropy ceramics, as well as theoretical aspects of electrodeposition of HEAs and introducing machine learning to speed up the fabrication of novel coatings and optimize the processing parameters, are discussed.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 3","pages":"1005 - 1028"},"PeriodicalIF":2.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143480996","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 Solution Temperature on the Microstructural Evolution and Mechanical Properties of the GH4706 Alloy 固溶温度对GH4706合金组织演变及力学性能的影响

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-13 DOI: 10.1007/s11837-025-07154-z

Chong Wang, Lei Wang, Shuo Huang, Ran Duan, He-yong Qin, Bei-jiang Zhang

{"title":"Effects of Solution Temperature on the Microstructural Evolution and Mechanical Properties of the GH4706 Alloy","authors":"Chong Wang, Lei Wang, Shuo Huang, Ran Duan, He-yong Qin, Bei-jiang Zhang","doi":"10.1007/s11837-025-07154-z","DOIUrl":"10.1007/s11837-025-07154-z","url":null,"abstract":"<div>The microstructural evolution and mechanical properties of the GH4706 alloy were investigated at the solution temperatures of 940°C (HT940), 980°C (HT980), and 1010°C (HT1010). The results indicate that both the average grain size and the fraction of twin boundaries increase as the solution temperature increases, whereas the HT940 sample exhibited serrated grain boundaries and numerous low-angle grain boundaries. The size of the η phase decreases as the solution temperature increases. The catenulate γ′-γ″ eutectoid microstructure with a large size and the η phase partially precipitate in the grains of the HT940 sample under high distortion energy. The room-temperature yield strength of the HT940 sample is improved owing to the large size of the γ′-γ″ eutectoid microstructure, the high dislocation density, and the fine grains hindering the dislocation motion. The rupture life is the longest in HT940, followed by HT980 and HT1010, which is attributed to the large sizes of the γ′-γ″ eutectoid microstructure and η phase, serrated grain boundaries, high dislocation density, and low fraction of twin boundaries, which hinder crack propagation. The η phase in the grain cannot deform cooperatively with the γ matrix, resulting in transgranular fracture of the ruptured HT940 sample.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4090 - 4101"},"PeriodicalIF":2.1,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091043","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

Waves of Innovation: What to Expect at OTC 2025 创新浪潮：OTC 2025年会有什么期待

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-12 DOI: 10.1007/s11837-025-07233-1

Kaitlin Calva

引用次数: 0

Effect of Ni Content on the Phase Stability and Shape Memory Effect of Non-equiatomic CrMnFeCoNi High-Entropy Alloys Ni含量对非等原子crmnnfeconi高熵合金相稳定性和形状记忆效应的影响

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-12 DOI: 10.1007/s11837-025-07206-4

Jinsurang Lim, Hwi Yun Jeong, Je In Lee

{"title":"Effect of Ni Content on the Phase Stability and Shape Memory Effect of Non-equiatomic CrMnFeCoNi High-Entropy Alloys","authors":"Jinsurang Lim, Hwi Yun Jeong, Je In Lee","doi":"10.1007/s11837-025-07206-4","DOIUrl":"10.1007/s11837-025-07206-4","url":null,"abstract":"<div>We investigated the effect of the Ni content on the face-centered cubic (FCC) phase stability and recovery strain of non-equiatomic CrMnFeCoNi alloys. From a well-known equiatomic CrMnFeCoNi high-entropy alloy, a series of Cr20Mn20Fe20Co40−xNix alloys (x = 0, 2, 4, 6, 8 at.%) are designed, and their shape memory effect is discussed. The alloys with moderate Ni content (6 ≤ x ≤ 8 at.%) are the FCC single-phase solid solutions, whereas the alloys with a less Ni (x ≤ 4 at.%) display a FCC + hexagonal close-packed (HCP) dual-phase structure due to thermally induced martensitic transformation. The replacement of Ni with Co strongly increased Ms and As of the Ni-lean CrMnFeCoNi alloys (x ≤ 6 at.%) by 31 K/at.% and 24 K/at.%, respectively. The pre-strained single-phase Cr20Mn20Fe20Co34Ni6 alloy (x = 6 at.%) exhibited the highest recovery strain of 1.2% in the Cr20Mn20Fe20Co40−xNix system. This is attributed to the formation of stress-induced HCP martensite in a single orientation and low strain hardening compared with other dual-phase alloys. These results provide guidelines for designing new shape memory alloys in the CrMnFeCoNi and its derivative systems.</div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2897 - 2906"},"PeriodicalIF":2.1,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835514","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

Precise Morphology Tailoring of Through Glass Vias Perforated by Selective Laser-Induced Etching on Fused Silica 熔融二氧化硅选择性激光诱导蚀刻穿孔玻璃孔的精确形态裁剪

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-11 DOI: 10.1007/s11837-025-07151-2

Jingli Liu, Chunyan Yin, Chenhui Xia, Xuefei Ming, Guangbin Dou

引用次数: 0

JOM Talks with 2024 TMS President Srini Chada 约翰·约翰与2024年TMS主席斯里尼·查达会谈

IF 2.1 4区材料科学

JOM Pub Date : 2025-02-11 DOI: 10.1007/s11837-025-07230-4

Kelly Zappas

引用次数: 0

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