Materials & Design最新文献

Design and surface enhancement of ABS parts manufactured by Arburg plastic freeforming (APF) using chemical vapor treatment

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-10 DOI: 10.1016/j.matdes.2025.113940

Vaclav Janostik , Martin Cvek , Vladimir Pata , Vojtech Senkerik , Martin Ovsik

{"title":"Design and surface enhancement of ABS parts manufactured by Arburg plastic freeforming (APF) using chemical vapor treatment","authors":"Vaclav Janostik , Martin Cvek , Vladimir Pata , Vojtech Senkerik , Martin Ovsik","doi":"10.1016/j.matdes.2025.113940","DOIUrl":"10.1016/j.matdes.2025.113940","url":null,"abstract":"<div><div>Additive manufacturing (AM) has become a key technology for fabricating highly customized products without the need for specific tools. Despite the benefits, this technology has some limitations, such as a poor surface finish of the products. Chemical treatment methods have been proven effective for enhancement of surface finish. To this date, such treatments were applied to the objects manufactured by various AM methods, but there is no data available for the products manufactured by Arburg plastic freeforming (APF). The APF is a unique technique based on the deposition of tiny polymer droplets to build a final component directly from pellets. In this study, we investigate the effects of chemical treatment in hot acetone vapors on the surface roughness, (micro)mechanical properties, and optical and molecular changes of acrylonitrile butadiene styrene (ABS) samples produced by APF. The dynamics of the treatment process were studied as a function of exposure time to acetone vapors. The results showed that bulk mechanical properties were preserved, while significant changes occurred in the surface mechanics, specifically the indentation hardness. Along with the chemical treatment, the surface roughness exhibited nontrivial behavior but ultimately yielded a ∼ 90 % reduction after 35 s, texture homogenization with the simultaneous improvement in gloss, from 2.2 to 45 GU, and surface aesthetics. The surface finishing process was very fast and easily scalable, offering valuable information for the design of ABS products in industrial applications.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113940"},"PeriodicalIF":7.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820933","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

PiezoSight: Coupling vision based tactile sensor neural network processing and piezoresistive stimulation for enhanced piezo-vision hybrid sensing

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-10 DOI: 10.1016/j.matdes.2025.113899

Abdullah Solayman , Hussain Sajwani , Oussama Abdul Hay , Rui Chang , Laith AbuAssi , Abdulla Ayyad , Yahya Zweiri , Yarjan Abdul Samad

{"title":"PiezoSight: Coupling vision based tactile sensor neural network processing and piezoresistive stimulation for enhanced piezo-vision hybrid sensing","authors":"Abdullah Solayman , Hussain Sajwani , Oussama Abdul Hay , Rui Chang , Laith AbuAssi , Abdulla Ayyad , Yahya Zweiri , Yarjan Abdul Samad","doi":"10.1016/j.matdes.2025.113899","DOIUrl":"10.1016/j.matdes.2025.113899","url":null,"abstract":"<div><div>Vision-based tactile sensors (VBTS) have become ubiquitous in robotics for contact and touch measurements due to their minimal instrumentation costs and exceptional high-resolution feedback. However, in the literature, VBTS often suffers from the requirement of extensive calibration and is limited to a specific range of forces. Recent advances in flexible, sensitive, and robust sensors have presented high potential for excellent use cases in robotics applications. The integration of graphene in piezoresistive sensors opened new horizons for such applications. This study presents PiezoSight, an encapsulated graphene-soaked textile in a stretchable elastomeric structure integrated with a VBTS. Piezosight overcomes VBTS weaknesses so that from the piezoresistive graphene textile, PiezoSight can detect a wide range of forces for robotic perception applications, varying from tiny forces for a soft touch and slip detection starting at 0.01 N up to an elevated force of 8 N. From VBTS, PiezoSight can infer high-resolution information, such as the direction of the contact measurements. Piezosight can sustain 10000 cycles with different compression rates at a strain of 40% with sensitives at 0.09 kPa<sup>-1</sup>. A machine learning LSTM model was used to train the data for different designs for using such sensors in unsupervised environments.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113899"},"PeriodicalIF":7.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143817189","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

Strength-ductility synergistic mechanism of SiC-decorated reduced graphene oxide on 5083 aluminum alloy

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-10 DOI: 10.1016/j.matdes.2025.113932

Wang Hongding , Hu Mingshuai , Zhao Hongwei , Yao Yacheng , Liu Hong , Li Zhengning , Wei Yupeng

{"title":"Strength-ductility synergistic mechanism of SiC-decorated reduced graphene oxide on 5083 aluminum alloy","authors":"Wang Hongding , Hu Mingshuai , Zhao Hongwei , Yao Yacheng , Liu Hong , Li Zhengning , Wei Yupeng","doi":"10.1016/j.matdes.2025.113932","DOIUrl":"10.1016/j.matdes.2025.113932","url":null,"abstract":"<div><div>This investigation employed chemical modification of reinforcement combined with hot extrusion methods to effectively produce silicon carbide decorated reduced graphene oxide (SiC/RGO, 0.1, 0.3 and 0.5 wt%) reinforced Al5083 composites. The microstructure and mechanical properties of these SiC/RGO/Al5083 composites were investigated with a focus on the strengthening mechanism of Al5083 MMC. The findings demonstrated that SiC particles positioned on the RGO surface inhibit the formation of the Al<sub>4</sub>C<sub>3</sub> phase. SiC/RGO notably enhanced the mechanical properties of the Al5083 MMC. The yield strength and ultimate strength of the Al5083 MMC with 0.3 wt% reinforcement reached 258 and 317 MPa, respectively. This corresponds to a 43 % and 38 % enhancement compared to pure Al5083 that has been processed similarly. Analyses of the strengthening mechanisms reveal that the strength of Al5083 composites in this study is mainly governed by the improved load transfer enabled by RGO and the grain refinement effects contributed by SiC.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113932"},"PeriodicalIF":7.6,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823226","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

Graphene oxide quantum dots-enhanced hydrogel: A multifunctional approach for eradicating bacteria and promoting vessel formation in infected wound management

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-08 DOI: 10.1016/j.matdes.2025.113930

Wenli Lu , Zhuoyuan Li , Tanjun Deng , Tingshu Su , Xiao Wang , Ao Zheng , Lingyan Cao

{"title":"Graphene oxide quantum dots-enhanced hydrogel: A multifunctional approach for eradicating bacteria and promoting vessel formation in infected wound management","authors":"Wenli Lu , Zhuoyuan Li , Tanjun Deng , Tingshu Su , Xiao Wang , Ao Zheng , Lingyan Cao","doi":"10.1016/j.matdes.2025.113930","DOIUrl":"10.1016/j.matdes.2025.113930","url":null,"abstract":"<div><div>To prevent or control wound infection is particularly important for the healing of common infectious wounds. In order to avoid bacterial resistance caused by traditional antibiotic therapy, this study developed a gelatin photocrosslinked hydrogel wrapped with graphene oxide quantum dots (GOQDs, GPH) that has photothermal antibacterial properties and can promote vascular regeneration. Firstly, The GOQDs and GPH were prepared and characterized. <em>In vitro</em> antibacterial, biocompatibility and the ability promote angiogenesis of GPH were detected. A mouse infectious wound model was used to investigate the feasibility of GPH to be a multifunctional dressing for skin repair. The GOQDs were prepared and GPH were developed. The incorporation of GOQDs into gelatin significantly improves the mechanical properties of the hydrogel. The outstanding GPH hydrogel showed remarkable photothermal ability, which is crucial for its antibacterial effect and helps to promote cell proliferation and angiogenesis, which is a key process of wound healing. <em>In vivo</em> testing further confirmed the effectiveness of GPH hydrogel in promoting skin repairing, especially when used in combination with near-infrared radiation (NIR). The unique nano photothermal properties of hydrogel, together with its enhanced mechanical strength and biocompatibility, make it a promising candidate for future applications in infection and chronic wound medicine.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113930"},"PeriodicalIF":7.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820934","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

Icariin-based bone scaffold for treating steroid-induced necrosis of femoral head by restoring angiogenesis and promoting osteogenesis

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-08 DOI: 10.1016/j.matdes.2025.113913

ZhiDong Lin , JiaQian Liu , LiLun Zhong , Wei Niu , XuLin Hu

{"title":"Icariin-based bone scaffold for treating steroid-induced necrosis of femoral head by restoring angiogenesis and promoting osteogenesis","authors":"ZhiDong Lin , JiaQian Liu , LiLun Zhong , Wei Niu , XuLin Hu","doi":"10.1016/j.matdes.2025.113913","DOIUrl":"10.1016/j.matdes.2025.113913","url":null,"abstract":"<div><div>Steroid-induced femoral head avascular necrosis (SFHN), a devastating orthopedic condition characterized by ischemic bone collapse, urgently requires interventions addressing both impaired angiogenesis and compromised osteogenesis. Here, we developed an icariin (ICA)-functionalized β-tricalcium phosphate (β-TCP) composite scaffold through an innovative low-temperature rapid prototyping (LT-RP) technique. This strategy fundamentally resolves the critical limitation of conventional high-temperature sintering that compromises bioactivity through thermal degradation. Additionally, by adjusting the ratio of α-TCP to β-TCP, we optimized the mechanical properties of the scaffold, enhancing its suitability for bone repair and ensuring that its degradation rate matches the rate of new bone formation. Furthermore, gelatin was introduced into the porous structure of the scaffold, successfully encapsulating ICA, allowing for sustained release during bone repair. This innovative design significantly improved the osteogenic and angiogenic effects of the scaffold. Animal experiments showed that the ICA-loaded reconstruction scaffold effectively promoted new bone formation and angiogenesis, enhancing the integration between the implant and bone tissue. This bioengineered approach establishes a paradigm for reconstructing necrotic subchondral bone while preserving joint biomechanics.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113913"},"PeriodicalIF":7.6,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823809","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

MAG-FIL: Electromagnetic flow-on-demand devices for pushing fluids into concrete cracks

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-07 DOI: 10.1016/j.matdes.2025.113927

Onur Ozturk, Sriramya Duddukuri Nair

{"title":"MAG-FIL: Electromagnetic flow-on-demand devices for pushing fluids into concrete cracks","authors":"Onur Ozturk, Sriramya Duddukuri Nair","doi":"10.1016/j.matdes.2025.113927","DOIUrl":"10.1016/j.matdes.2025.113927","url":null,"abstract":"<div><div>An economical and sustainable approach to extend the service life of deteriorating concrete infrastructure involves filling and healing cracks. However, effectively infiltrating crack-filling solutions through the depths of concrete cracks of varying widths remains a significant challenge. To tackle this, our study explores an innovative concept: designing scalable and tunable electromagnetic devices called MAG-FIL. These devices utilize magnetic flow-on-demand technology to enhance crack-filling operations. Unlike conventional magnetic systems where fluids flow towards a magnet, MAG-FIL is designed to push fluids away from the magnet. This pushing mechanism is crucial when both the crack-filling materials and magnetic tools must operate on the same surface, due to limitations imposed by large element size, restricted access to the opposite side and steel reinforcement. Apart from existing solutions, MAG-FIL’s design is intentionally simple yet highly tunable, enabling it to be easily adapted to meet the specific requirements of concrete crack filling. Through a series of experimental and numerical studies, we have demonstrated the potential of employing magnetic technology to improve infiltration and have identified key factors influencing performance. By carefully considering the interactions between these factors, we present strategies to optimize the benefits derived from utilizing MAG-FIL.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113927"},"PeriodicalIF":7.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823228","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

Multifunctional nanofiber-based dressings in coordination with adipose-derived stem cells for accelerated burn wound healing

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-07 DOI: 10.1016/j.matdes.2025.113929

Ziyi Zhou , Yuanfei Wang , Na Liu , Xiaopei Zhang , Xuchao Ning , Yuanxin Miao , Chuanglong He , Tong Wu , Xiangfeng Leng

{"title":"Multifunctional nanofiber-based dressings in coordination with adipose-derived stem cells for accelerated burn wound healing","authors":"Ziyi Zhou , Yuanfei Wang , Na Liu , Xiaopei Zhang , Xuchao Ning , Yuanxin Miao , Chuanglong He , Tong Wu , Xiangfeng Leng","doi":"10.1016/j.matdes.2025.113929","DOIUrl":"10.1016/j.matdes.2025.113929","url":null,"abstract":"<div><div>Burn wound healing remains a significant clinical challenge due to infections and poor tissue regeneration. To address this issue, we developed a tri-layered wound dressing (TLWD) integrated with adipose-derived stem cells (ADSCs, TLWDA) to accelerate burn wound repair. The outer layer consists of radially aligned nanofibers coated with a gradient of epidermal growth factor (EGF) to promote epidermal regeneration. The middle layer is composed of dense gelatin nanofibers coated with methacrylate-chitosan hydrogel, providing mechanical support and antimicrobial properties. The inner layer features mesh-structured nanoyarns coated with gelatin nanofibers, which can regulate the paracrine secretion of ADSCs. Antibacterial assay and live/dead bacterial staining confirmed that the TLWDA scaffold exhibits excellent antimicrobial activity. Scratch assays demonstrated that TLWDA enhances the migration of keratinocytes, fibroblasts, and endothelial cells. Additionally, TLWDA markedly improves angiogenesis and upregulates the secretion of EGF and fibroblast growth factor (FGF2) from ADSCs. <em>In vivo</em> experiments, compared to TLWD or ADSCs alone, TLWDA significantly accelerates the healing process of burn wounds, while improving the thickness of the regenerated epidermal layer, collagen deposition, and vascularization. The synergistic effect of this multifunctional nanofiber-based composite scaffold with ADSCs offers a highly promising strategy for the effective repair of burn wounds.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113929"},"PeriodicalIF":7.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823810","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

Injectable glycyrrhizic acid-based hydrogel with Immunoregulatory and angiogenic properties for diabetic wound healing

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-07 DOI: 10.1016/j.matdes.2025.113928

Haisheng Wu , Zichao Xue , Zhigang Wang , Jiacai Mei , Mingzhe Shao , Jian Zhang , Haiyang Hu , Ye Pan

{"title":"Injectable glycyrrhizic acid-based hydrogel with Immunoregulatory and angiogenic properties for diabetic wound healing","authors":"Haisheng Wu , Zichao Xue , Zhigang Wang , Jiacai Mei , Mingzhe Shao , Jian Zhang , Haiyang Hu , Ye Pan","doi":"10.1016/j.matdes.2025.113928","DOIUrl":"10.1016/j.matdes.2025.113928","url":null,"abstract":"<div><div>Diabetic wound healing (DWH) demands multifunctional dressings capable of delivering therapeutic agents to counteract the impaired repair microenvironment. Elevated oxidative stress and chronic inflammation not only suppress regenerative cell viability but also exacerbate apoptosis and vascular dysfunction, collectively hindering wound healing. To address these challenges, we developed an injectable dual-network hydrogel dressing based on immunomodulatory and pro-angiogenic glycyrrhizic acid (GA). This hydrogel combinesalkylated glycyrrhizinic acid (AGA)andmethacrylated sericin (SFMA)to form a natural extracellular matrix (ECM)-mimetic dual network, achieving both excellent injectability and enhanced mechanical properties. Furthermore, the hydrogel incorporates the pro-angiogenic agentdesferrioxamine (DFO)through dynamic covalent bonding, enabling sustained drug release. The resultingAGA/SFMA@DFO hydrogeleffectively modulates macrophage polarization and enhances vascular regeneration under inflammatory conditions. Additionally, the residual aldehyde groups in theAGA/SFMA@DFOgel form Schiff base linkages with amino groups on the skin surface, ensuring strong tissue adhesion. Consequently, this multifunctional hydrogel dressing demonstrates significant potential in accelerating diabetic wound repair.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113928"},"PeriodicalIF":7.6,"publicationDate":"2025-04-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143820386","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

Superlubricity enabled by graphene nanocomposite film on carbon-coated AISI 1045 steel

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-06 DOI: 10.1016/j.matdes.2025.113916

Tabiri Kwayie Asumadu , Mobin Vandadi , Desmond Edem Primus Klenam , Kwadwo Mensah-Darkwa , Kwadwo Adinkrah-Appiah , Emmanuel Gikunoo , Nima Rahbar , Samuel Kwofie , Winston Oluwole Soboyejo

{"title":"Superlubricity enabled by graphene nanocomposite film on carbon-coated AISI 1045 steel","authors":"Tabiri Kwayie Asumadu , Mobin Vandadi , Desmond Edem Primus Klenam , Kwadwo Mensah-Darkwa , Kwadwo Adinkrah-Appiah , Emmanuel Gikunoo , Nima Rahbar , Samuel Kwofie , Winston Oluwole Soboyejo","doi":"10.1016/j.matdes.2025.113916","DOIUrl":"10.1016/j.matdes.2025.113916","url":null,"abstract":"<div><div>This paper presents a low-cost and innovative method for treating high temperature biowaste to create an ultra-low friction carbon-based coating on AISI 1045 steel. Utilizing carbon from Manihot esculenta biowaste, graphene variants were deposited on substrates at 500 °C and 900 °C. The microstructure and mechanical/tribological properties were studied pre- and post-treatment. These include Vickers hardness and wear characteristics that were measured with a ball-on-disk wear tester. Increasing treatment temperature and time resulted in high substrate hardness. The graphene variants were characterized using Raman spectroscopy with discernible trends D and G band trends. The I<sub>2D</sub>/I<sub>G</sub> and I<sub>D</sub>/I<sub>G</sub> intensity ratios varied as the treatment conditions changed. Electron backscatter diffraction, X-ray diffraction, optical, scanning electron, and atomic force microscopy provided insights into phases and microstructural features. Tribological tests showed remarkable ∼95.20 % reduction with a superlubricious coefficient of friction of ∼0.0015 and ∼88 % decreased wear rate for substrates treated for 5 h at 900 °C. The graphene platelet and multiwalled defective structures on the substrates transformed into graphene oxide and graphene nanocrystals providing the needed solid lubrication. The underlying mechanisms are discussed before elucidating the implications of the result for the design of rigorous, novel carbon coatings for frictionless and ultralow-wear surfaces in a circular economy.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113916"},"PeriodicalIF":7.6,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143823808","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

Influence of melting mode on melt pool dynamics and microstructure in WE43 Mg alloy: A combined computational and experimental approach 熔化模式对 WE43 镁合金熔池动力学和微观结构的影响：计算与实验相结合的方法

IF 7.6 2区材料科学

Materials & Design Pub Date : 2025-04-06 DOI: 10.1016/j.matdes.2025.113925

Francesco D’Elia , Mohammad Hoseini-Athar , Satya Chaitanya Vaddamanu , Mikael Ersson , Peter Hedström , Cecilia Persson

{"title":"Influence of melting mode on melt pool dynamics and microstructure in WE43 Mg alloy: A combined computational and experimental approach","authors":"Francesco D’Elia , Mohammad Hoseini-Athar , Satya Chaitanya Vaddamanu , Mikael Ersson , Peter Hedström , Cecilia Persson","doi":"10.1016/j.matdes.2025.113925","DOIUrl":"10.1016/j.matdes.2025.113925","url":null,"abstract":"<div><div>In this study, laser-material interactions during laser-powder bed fusion of WE43 magnesium alloy were characterized through numerical and experimental analyses. Various melting modes (i.e., conduction, transition, and keyhole) were induced through deposition of laser tracks at powers ranging from 80 to 130 W, and used as input parameters for a thermo-fluid model. Results of microscopy demonstrated good agreement between numerical and experimental measurements of melt pool depth, as well as a strong correlation between melt pool microstructure and the thermo-fluid conditions predicted by the model. Specifically, for conduction mode at 80 W, a predominance of cellular subgrains within the melt pool was consistent with the predicted steep thermal gradients, while for keyhole mode at 130 W, low thermal gradients correlated with high presence of equiaxed dendrites. Moreover, convection currents attributed to high recoil pressure in keyhole melt pools, were in agreement with locations of numerous subgrain boundaries having non-uniform morphologies, while under conduction, outward Marangoni flow led to a unique alignment of cellular subgrains and fewer subgrain boundaries. This study demonstrates the interplay among processing, thermal history, fluid flow and microstructure in WE43, and provides a basis for future design of microstructures for improved material properties.</div></div>","PeriodicalId":383,"journal":{"name":"Materials & Design","volume":"253 ","pages":"Article 113925"},"PeriodicalIF":7.6,"publicationDate":"2025-04-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800506","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0