JOMPub Date : 2025-04-07DOI: 10.1007/s11837-025-07336-9
Thak Sang Byun, Yan-Ru Lin, David A. Collins, Holden C. Hyer, Kelsey Epps, Kara Krogh
{"title":"Mechanical Characteristics of Additively Manufactured ODS 316L and 316H Alloys with and Without Post-build Processing","authors":"Thak Sang Byun, Yan-Ru Lin, David A. Collins, Holden C. Hyer, Kelsey Epps, Kara Krogh","doi":"10.1007/s11837-025-07336-9","DOIUrl":"10.1007/s11837-025-07336-9","url":null,"abstract":"<div><p>This research aims to explore an accelerated development path for oxide dispersion-strengthened (ODS) alloys by integrating additive manufacturing (AM) technologies with recent advances in ODS materials and traditional manufacturing methods. Novel AM and post-build processing routes have been developed for ODS austenitic alloys, specifically Fe-Cr-Ni alloys like 316L and 316H. Electron microscopy and mechanical characterizations were conducted to evaluate the effects of process variables on microstructure and properties, aiming for an economically feasible route property optimization. Traditionally, ODS alloy production involves multi-day high-energy mechanical milling of alloy powder with yttria (Y<sub>2</sub>O<sub>3</sub>) followed by powder consolidation via extrusion or other methods and additional thermomechanical processing (TMP) for property control. To address these challenges associated with this complex and costly approach, we propose exploring alternative, cost-effective processing routes focusing on AM and traditional TMP methods. The new ODS alloy processing routes have achieved up to a 400% increase in yield strength and a 60% increase in ultimate tensile strength compared to wrought stainless steels while still maintaining significant ductility and fracture toughness. This paper details the novel and economical AM-based processing routes for ODS austenitic alloys, combined with post-build TMPs, and discusses the mechanical and microstructural characteristics of the developed materials.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4519 - 4534"},"PeriodicalIF":2.1,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091042","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}
JOMPub Date : 2025-04-04DOI: 10.1007/s11837-025-07329-8
Jaeseong Kim, Hasik Kim, Hwa-Chul Jung, Joung Sik Suh, Jein Lee
{"title":"Effect of Extrusion Ratio on Mechanical and in Vitro Degradation Properties of Mg-Zn-Ca Microtubes for Biodegradable Vascular Stents","authors":"Jaeseong Kim, Hasik Kim, Hwa-Chul Jung, Joung Sik Suh, Jein Lee","doi":"10.1007/s11837-025-07329-8","DOIUrl":"10.1007/s11837-025-07329-8","url":null,"abstract":"<div><p>Magnesium (Mg) has emerged as a promising biomaterial, with considerable potential for utilization in biomedical applications. However, Mg alloys are confronted with specific challenges, including rapid biodegradation, low mechanical strength, and processing difficulties. It is thus of paramount importance to develop high-performance Mg alloys and the associated processing techniques with the objective of enhancing their overall properties for utilization in biomedical applications. This study examines the impact of extrusion ratio on the mechanical properties and in vitro degradation behavior of Mg-1Zn-0.1Ca (ZX101) microtubes for biodegradable vascular stents. Two-step direct extrusion was employed to fabricate microtubes with outer diameters of 3.5 mm and 2.1 mm and wall thicknesses of 250 µm and 200 µm, respectively. As the extrusion ratio increased, the dimensional accuracy exhibited an improvement for the outer diameter, whereas a decline was observed for the inner diameter. As the extrusion ratio increased from 57:1 to 121:1, the tensile properties of the extruded ZX101 microtubes were enhanced by grain refinement, despite a concurrent weakening of the basal texture. Furthermore, an increase in the extrusion ratio led to an accelerated biodegradation rate. These findings contribute to the pivotal interplay between microstructure, mechanical properties, and biodegradation in the design of Mg-based biodegradable stents.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4393 - 4401"},"PeriodicalIF":2.1,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091021","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}
JOMPub Date : 2025-04-04DOI: 10.1007/s11837-025-07276-4
Asier Gonzalez-Gonzalez, Jose Manuel Lopez-Guede
{"title":"Hydrogen Station Model Design Using Functional Mock-Up Units and Metaheuristics Optimization","authors":"Asier Gonzalez-Gonzalez, Jose Manuel Lopez-Guede","doi":"10.1007/s11837-025-07276-4","DOIUrl":"10.1007/s11837-025-07276-4","url":null,"abstract":"<div><p>Hydrogen-powered heavy-duty vehicles will transform the logistics landscape, but their extensive adoption presents substantial challenges. Matching hydrogen demand with supply, scaling up infrastructure, controlling carbon emissions targets, and integrating with renewable energy sources are significant obstacles to overcome. This paper addresses these challenges by modeling a hydrogen station for heavy-duty vehicle fleets using Matlab-Simulink software. The hydrogen station components proposed are individually modeled: (1) the electrolyzer model generates hydrogen and oxygen by electrolysis consuming water and electricity; (2) the hydrogen reformer model generates hydrogen and carbon dioxide through steam methane reforming or ethanol reforming; (3) the hydrogen storage tank; and (4) carbon capture and storage. These models were compiled into functional mock-up units (FMU) to facilitate further exploration. This paper incorporates metaheuristic optimization techniques to address the design complexities and enhance the performance of hydrogen stations under various operating conditions. Multiple optimization objectives have been considered, including reducing carbon emissions and reducing the total monetary cost. Furthermore, several critical constraints are integrated to ensure realistic scenarios. These constraints include the accumulated hydrogen production that meets daily demand and the limitations in resource consumption. Finally, the combination of the FMU approach with metaheuristics techniques demonstrates the potential for the optimal hydrogen infrastructure design.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 5","pages":"2907 - 2931"},"PeriodicalIF":2.1,"publicationDate":"2025-04-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-025-07276-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835588","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
JOMPub Date : 2025-04-02DOI: 10.1007/s11837-025-07325-y
Chuanjun Fei, Weifang Chen, Liping Zhu, Yafei Bai
{"title":"Investigation of Extrusion Fibrosis of PTFE Microporous Film During Extrusion Process Based on Air Permeability Experiments and Theoretical Analysis","authors":"Chuanjun Fei, Weifang Chen, Liping Zhu, Yafei Bai","doi":"10.1007/s11837-025-07325-y","DOIUrl":"10.1007/s11837-025-07325-y","url":null,"abstract":"<div><p>The proportions of fiber, node, and pores on unit area of PTFE film were analyzed by image recognition. The relationship between the permeability and fibrosis degree was established based on air permeability experiments combined with theoretical analysis by using computational fluid dynamics (CFD) numerical simulation of the PTFE extrusion fibrosis process. With the particle tracing method, the independence of the particle number on the time step was simulated. The influences of the PTFE die cone angle, aspect ratio, compression ratio, and blank pushing speed were investigated. The simulation results are well consistent with those from experimental measurements, further verifying the reliability of the CFD simulation method of extrusion fibrosis. It is concluded that the cone angle, aspect ratio, and pushing speed have little effect on the export fibrosis index, while the average export fibrosis index increases with the compression ratio. Greater pushing force is required to achieve improved air permeability uniformity.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4609 - 4620"},"PeriodicalIF":2.1,"publicationDate":"2025-04-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090990","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}
JOMPub Date : 2025-04-01DOI: 10.1007/s11837-025-07302-5
Zhenhu Hua, Yongting Lan
{"title":"Microscopic Analysis of the Synergistic Mechanism of Strength and Toughness of Magnesium Alloys Reinforced by Graphene Nanoplatelets","authors":"Zhenhu Hua, Yongting Lan","doi":"10.1007/s11837-025-07302-5","DOIUrl":"10.1007/s11837-025-07302-5","url":null,"abstract":"<div><p>In order to examine the influence of graphene nanoplatelet (GNP) incorporation on the microstructure and tensile characteristics of AZ31 magnesium alloys, a dispersion processing method was employed to prepare magnesium matrix composites (GNPs/AZ31) with varying mass fractions of GNPs, specifically 0.1 wt.%, 0.3 wt.%, and 0.6 wt.%. Uniaxial tensile loading tests were conducted to evaluate and compare the effects of different GNP concentrations on the GNPs/AZ31 properties, focusing on tensile strength, yield strength, elongation, and fracture work. Additionally, microstructural characterization techniques, including optical microscopy, scanning electron microscopy, energy-dispersive X-ray spectroscopy, and X-ray diffraction, were utilized to investigate the microstructural evolution of the GNPs/AZ31 in terms of grain size, composition, phase distribution, dislocation density, and texture. The results from the uniaxial tensile tests indicated a synergistic enhancement in both strength and toughness of the GNPs/AZ31 with increasing GNP content. Notably, at a GNP concentration of 0.6 wt.%, the GNPs/AZ31 exhibited tensile strength, yield strength, elongation, and fracture work values of 360 MPa, 253 MPa, 23.7%, and 72 J m<sup>−3</sup>, respectively. Microstructural analysis indicates that the GNPs are evenly dispersed throughout the GNPs/AZ31. As the quantity of GNPs increases, there is a corresponding reduction in the grain size; concurrently, there is an increase in dislocation density. This phenomenon is advantageous for enhancing the strength of the GNPs/AZ31. Furthermore, the texture intensity of the (0002) basal plane exhibits a slight reduction in the GNPs/AZ31, which promotes the activation of multiple crystal slip systems and enhances the plasticity of the material. This study may provide significant experimental data which could facilitate the advancement of high-performance GNPs/AZ31 and enhance the utilization of AZ31 magnesium alloy in aerospace, automotive, and consumer electronics applications.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4594 - 4608"},"PeriodicalIF":2.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144090987","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}
JOMPub Date : 2025-03-31DOI: 10.1007/s11837-025-07323-0
Junfeng Ye, Hongjin Zhao, Bing Zhang, Minghua Li, Xiaoxia Liang
{"title":"High-Throughput Design of Micro-Alloyed Al-Mg-Si Alloys","authors":"Junfeng Ye, Hongjin Zhao, Bing Zhang, Minghua Li, Xiaoxia Liang","doi":"10.1007/s11837-025-07323-0","DOIUrl":"10.1007/s11837-025-07323-0","url":null,"abstract":"<div><p>Micro-alloying has been widely used as an effective way to improve the comprehensive performance of metal structural materials. However, there are many kinds of micro-alloying elements and the content is less, so the traditional ‘trial and error’ experiment is slightly weak in material design. How to efficiently and quickly design the composition and process of micro-alloyed Al-Mg-Si alloys remains a huge challenge. In this work, the quantitative relationship of material composition–process–performance has been established by convolutional neural network combined with multi-model framework of six independent machine learning algorithms. A random optimization method for aluminum alloy samples was proposed and a variety of new components of materials were screened by high-throughput screening to narrow the range of micro-alloying elements. Then, the first-principles method was used to calculate the substitution, energy, and many properties of the L1<sub>2</sub>-type precipitated phase. The results show that Yb, Sc and Ce elements are excellent micro-alloying elements. After designing the material composition and process, the experimental test results proved the accuracy of machine learning prediction and the strength and elongation of the material after micro-alloying were greatly improved. At the same time, a large number of rare-earth strengthening phases were observed, which was the key factor in improving the properties of the material, and was also consistent with the characteristic calculation results of the first-principles alloy phase. This study opens up a new way for a variety of material genetic engineering methods and efficient design of materials.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4115 - 4134"},"PeriodicalIF":2.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091182","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":"Dissolution Behavior of the Cu-2.0 wt% Be Alloy (Alloy 25) in Molten Sn, Sn-3.0 wt% Ag-0.5 wt% Cu, and Sn-58 wt% Bi Lead-free Solders","authors":"Yee-wen Yen, Andromeda Dwi Laksono, Chien-Lung Liang, Chia-Ming Hsu, Ssu-Chen Pan, Satoshi Iikubo","doi":"10.1007/s11837-025-07324-z","DOIUrl":"10.1007/s11837-025-07324-z","url":null,"abstract":"<div><p>This study investigated the dissolution behavior of Cu-2.0 wt% Be alloy (Alloy 25) in molten Sn, Sn-3.0 wt% Ag-0.5 wt% Cu (SAC), and Sn-58 wt% Bi (SB) lead-free solders at 240 °C, 270 °C, and 300 °C for 5–100 min. The dissolution rate of Alloy 25 in each molten solder system increased with the soldering temperature. The sequence of dissolution rates was as follows: Sn > SAC > SB. In addition, first-principles calculation revealed that adding Be to Cu makes it more difficult for Cu to incorporate into the Sn bulk. Notably, the linear C1–C2 path where the transition occurs directly between two adjacent lattice sites exhibits the lowest diffusion energy barrier for Be (0.24 eV), which increases to 0.48 eV in the presence of Bi. The Cu<sub>6</sub>Sn<sub>5</sub> phase, with minor solubility of the Be atom, was formed at all solder/Alloy 25 interfaces. In the SAC/Alloy 25 system, the Ag<sub>3</sub>Sn phase precipitated within the Cu<sub>6</sub>Sn<sub>5</sub> grains, decreasing the dissolution rate of Alloy 25 in the molten SAC solder. Notably, a Cu<sub>6</sub>Sn<sub>5</sub>/liquid/Cu<sub>6</sub>Sn<sub>5</sub> structure was observed in the SB/Alloy 25 system. The formation of a liquid phase at the SB/Alloy 25 interface effectively reduced the dissolution rate of Alloy 25.</p></div>","PeriodicalId":605,"journal":{"name":"JOM","volume":"77 6","pages":"4192 - 4205"},"PeriodicalIF":2.1,"publicationDate":"2025-03-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s11837-025-07324-z.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144091183","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}