Materialia最新文献_第3页

Effects of manganese and copper co-doped bioactive glasses with photothermal response on osseous cells 具有光热响应的掺锰和掺铜生物活性玻璃对骨细胞的影响

IF 3

Materialia Pub Date : 2024-10-30 DOI: 10.1016/j.mtla.2024.102253

Sahand Zabih Gholami, Maryam Tajabadi, Bijan Eftekhari Yekta

{"title":"Effects of manganese and copper co-doped bioactive glasses with photothermal response on osseous cells","authors":"Sahand Zabih Gholami, Maryam Tajabadi, Bijan Eftekhari Yekta","doi":"10.1016/j.mtla.2024.102253","DOIUrl":"10.1016/j.mtla.2024.102253","url":null,"abstract":"<div><div>Herein, a series of bioactive glasses with a composition based on SiO<sub>2</sub><sub><img></sub>Na<sub>2</sub>O<img>CaO-P<sub>2</sub>O<sub>5</sub>-Bi<sub>2</sub>O<sub>3</sub>, doped with either manganese (Mn) or copper (Cu), or a combination of both have been developed. The aim was to create a biocompatible, bioactive material with a photothermal (PT) response for potential use in bone cancer treatment. UV/vis/NIR spectroscopy indicated that the addition of Cu to the glass resulted in a broadband absorption of around 800 nm, while Mn showed an absorption band of around 500 nm. Photoluminescence (PL) spectroscopy, which was performed by exciting the specimen using a 750 nm beam, revealed an emission at 823 nm for all glass compositions, but with varying intensities. When exposed to an 808 nm laser (5 W/cm<sup>2</sup>), the glass samples exhibited temperature rising, with the sample containing both Mn and Cu, showing the highest absorption peak, reaching 204 °C after 5 min. The degradation rate of the glass in a phosphate-buffered saline (PBS) solution was influenced by the presence of Mn and Cu. Cytotoxic assessment on osteoblast-like cells showed that the presence of Mn promoted cell proliferation by over 20 % after 24 h, but when irradiated with an 808 nm laser, the viability of cells decreased by nearly 60 % due to heat ablation. Finally, the glass sample demonstrated in vitro bioactivity through the formation of a hydroxyapatite layer on its surface when immersed in simulated body fluid.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102253"},"PeriodicalIF":3.0,"publicationDate":"2024-10-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656509","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ reaction-generation self-healing superior antioxidation layer induced by Al-Y sol-gel film on the AISI304 steel Al-Y 溶胶凝胶膜在 AISI304 钢上诱导原位反应生成自修复高级抗氧化层

IF 3

Materialia Pub Date : 2024-10-29 DOI: 10.1016/j.mtla.2024.102280

Hongtao Chen, Hao Wu, Enhao Wang, Sicong Zhao, Yicheng Feng, Erjun Guo

引用次数: 0

Fracture behavior of brittle particulate composites consisting of a glass matrix and glass or ceramic particles with elastic property mismatch 由玻璃基体和玻璃或陶瓷颗粒组成的弹性性能不匹配的脆性颗粒复合材料的断裂行为

IF 3

Materialia Pub Date : 2024-10-29 DOI: 10.1016/j.mtla.2024.102278

Tanguy Lacondemine , Julien Moriceau , Theany To , Patrick Houizot , Fabrice Célarié , Dusan Galusek , Jozef Kraxner , Marion Vandenhende , Gaëlle Delaizir , Raphael Langlois , Julien Réthoré , Jérôme Adrien , Eric Maire , Tanguy Rouxel

{"title":"Fracture behavior of brittle particulate composites consisting of a glass matrix and glass or ceramic particles with elastic property mismatch","authors":"Tanguy Lacondemine , Julien Moriceau , Theany To , Patrick Houizot , Fabrice Célarié , Dusan Galusek , Jozef Kraxner , Marion Vandenhende , Gaëlle Delaizir , Raphael Langlois , Julien Réthoré , Jérôme Adrien , Eric Maire , Tanguy Rouxel","doi":"10.1016/j.mtla.2024.102278","DOIUrl":"10.1016/j.mtla.2024.102278","url":null,"abstract":"<div><div>The aim of this work is two-fold: i) elaborating dense and transparent inorganic glass composites with improved fracture properties, and ii) testing the theoretical analysis proposed in [1] and based on Poisson's ratio mismatch. Particulate composites, consisting of glass or ceramic particles embedded in a soda-lime-silica glass matrix, were synthesized and their fracture behavior was studied by means of the Single-Edge Precraked Beam (SEPB) and Double Cleavage Drilled Compression (DCDC) methods, using in situ experiments with X-ray tomography where possible. An important effect of the T-stress on the fracture toughness (<em>K<sub>Ic</sub>) was observed in the case of DCDC experiments. K<sub>Ic</sub> is increased by about 40</em> % by incorporating 7 vol. % amorphous silica beads or SrAl<sub>2</sub>O<sub>4</sub>:Eu,Dy ceramic particles (SAED) with a 40 μm mean particle size. It is suggested that toughening results from the crack front trapping and pinning at particle sites and from the tortuous crack path in the case of a-SiO<sub>2</sub> particles, and from the contribution of the intrinsic fracture surface energy of the ceramic particles, which are cleaved by the propagating crack, in the case of the SAED particles. The thermally induced stress field is believed to play a major role in the case of a-SiO<sub>2</sub> particles. Two glass grades possessing Young's moduli similar to the one of the matrix but much larger Poisson's ratios were used to produce glass beads. However, the incorporation of these latter beads in the matrix was found to have a minor incidence on the fracture behavior.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102278"},"PeriodicalIF":3.0,"publicationDate":"2024-10-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656464","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In situ weak-beam scanning transmission electron microscopy observation of geometrically necessary dislocations formed by Mn precipitates in A533B alloy steel 原位弱光束扫描透射电子显微镜观察 A533B 合金钢中锰析出物形成的几何必要位错

IF 3

Materialia Pub Date : 2024-10-28 DOI: 10.1016/j.mtla.2024.102272

Kenta Yoshida , Hotaka Miyata , Daisaku Yokoe , Takeharu Kato , Minako Endo , Hideki Yuya , Yusuke Shimada , Hideo Watanabe

{"title":"In situ weak-beam scanning transmission electron microscopy observation of geometrically necessary dislocations formed by Mn precipitates in A533B alloy steel","authors":"Kenta Yoshida , Hotaka Miyata , Daisaku Yokoe , Takeharu Kato , Minako Endo , Hideki Yuya , Yusuke Shimada , Hideo Watanabe","doi":"10.1016/j.mtla.2024.102272","DOIUrl":"10.1016/j.mtla.2024.102272","url":null,"abstract":"<div><div>In this study, the Charpy impact test was performed for mechanically introducing cracks in A533B steel. Then, <em>in situ</em> weak-beam scanning transmission electron microscopy (WB-STEM) annealing tests were performed from room temperature to 600 °C. A wide area surface polishing method that did not require chemical polishing or resin-filling process for bulk specimens were developed for microsampling a 200 nm thin film. The film was sampled from the strain site at the crack tip (EBSD-KAM value: 2.7°) via Focus ion beam-scanning electron microscopy (FIB-SEM), <em>i.e.</em>, the inhomogeneous plastic deformation zone of dislocation density above 2.5 × 10<sup>16</sup> /m<sup>2</sup> formed by Mn precipitates. In isochronous annealing process imaging, the dynamic behavior of dislocations was successfully visualized using movie files with a spatial resolution of 0.4 nm/pixel and a temporal resolution of 1s/frame via WB-STEM. Results revealed thermal relaxation of local strain as high density dislocations deformed into new subgrain boundaries via the geometrically necessary dislocation network at control temperatures from 500 °C to 550 °C.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102272"},"PeriodicalIF":3.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586495","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evaluation of elastic constants of M23C6 and M7C3 embedded in Fe-Cr-C alloys using in-situ XRD tensile test and self-consistent model 利用原位 XRD 拉伸试验和自洽模型评估嵌入 Fe-Cr-C 合金中的 M23C6 和 M7C3 的弹性常数

IF 3

Materialia Pub Date : 2024-10-28 DOI: 10.1016/j.mtla.2024.102274

Hoon Lee , Xiang Liu , Kuan-Che Lan , Huan Yan , Xiao Pan , Xuan Zhang , Jun-sang Park , Meimei Li , Jonathan Almer , James Stubbins

{"title":"Evaluation of elastic constants of M23C6 and M7C3 embedded in Fe-Cr-C alloys using in-situ XRD tensile test and self-consistent model","authors":"Hoon Lee , Xiang Liu , Kuan-Che Lan , Huan Yan , Xiao Pan , Xuan Zhang , Jun-sang Park , Meimei Li , Jonathan Almer , James Stubbins","doi":"10.1016/j.mtla.2024.102274","DOIUrl":"10.1016/j.mtla.2024.102274","url":null,"abstract":"<div><div>This paper investigates the elastic properties of the model Fe-Cr-C alloys, specifically focusing on M<sub>23</sub>C<sub>6</sub> and M<sub>7</sub>C<sub>3</sub>. The study uses in-situ synchrotron X-ray data during tensile deformation to determine the individual elastic characteristics of the matrix and iron/chromium carbides. The experimental results obtained from in-situ X-ray diffraction (XRD) are compared to the elastic constants of carbides that were reported in previous studies and derived using density function theory (DFT). The appropriate elastic constants for M<sub>23</sub>C<sub>6</sub> and M<sub>7</sub>C<sub>3</sub> were selected based on the self-consistent code executing with reported elastic constants. The directional elastic modulus and Poisson's ratio of iron/chromium carbides are calculated, and the anisotropy of the elastic constants is evaluated using the XRD lattice deformations under loading. The elastic modulus of carbide varies with the volume fraction of carbide in the effective medium. The study finds that the hexagonal structure is more probable than orthorhombic structure for M<sub>7</sub>C<sub>3</sub> due to well-matched estimations of the directional elastic modulus and Poisson's ratio obtained from in-situ XRD data and the self-consistent calculations. In-situ XRD analysis of elastic behavior of each diffraction can be used to demonstrate the elastic constants of carbides and shows potential for obtaining precise elastic constants by integrating with self-consistent modeling and DFT.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102274"},"PeriodicalIF":3.0,"publicationDate":"2024-10-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142586494","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of grain size and dislocation density on thermal stability of Al-Cu-Mg alloy 晶粒尺寸和位错密度对铝铜镁合金热稳定性的影响

IF 3

Materialia Pub Date : 2024-10-26 DOI: 10.1016/j.mtla.2024.102276

Huabing Yang , Cuicui Sun , Ying Li , Kaiming Cheng , Yunteng Liu , Jianhua Wu , Hongtao Liu , Jin Wang , Dongqing Zhao , Linghui Song , Xuansheng Feng , Jixue Zhou , Xiangfa Liu

{"title":"Effect of grain size and dislocation density on thermal stability of Al-Cu-Mg alloy","authors":"Huabing Yang , Cuicui Sun , Ying Li , Kaiming Cheng , Yunteng Liu , Jianhua Wu , Hongtao Liu , Jin Wang , Dongqing Zhao , Linghui Song , Xuansheng Feng , Jixue Zhou , Xiangfa Liu","doi":"10.1016/j.mtla.2024.102276","DOIUrl":"10.1016/j.mtla.2024.102276","url":null,"abstract":"<div><div>Thermostable Al alloys have been a consistent focus for decades, mainly adopting alloying strategy to improve thermostability of precipitates. In this work, it was found that matrix defects controlling could be a new way to improve thermal stability of Al alloys. Three alloys with composition of Al-4.1Cu-2.1Mg-0.3Mn but varied dislocation densities and grain sizes were prepared, and their thermal stability at 200 °C were investigated by identifying hardness vs. holding time curves. It revealed that the alloy with high dislocation density and small grain size showed poor thermal stability. Because dislocation and grain boundary provided accelerated diffusion channels for Cu and Mg atoms, leading to rapid growth of S’(Al<sub>2</sub>CuMg) precipitates, and the growth rate was a liner function of square of dislocation density <em>ρ<sup>2</sup></em> or square of grain size reciprocal <em>1/d<sup>2</sup></em> according to data fitting. A “dislocation affected zone” model was proposed to explain the diffusion phenomenon.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102276"},"PeriodicalIF":3.0,"publicationDate":"2024-10-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142573445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Grain boundary sensitization kinetics of cold-rolled Al–Mg alloys 冷轧铝镁合金的晶界敏化动力学

IF 3

Materialia Pub Date : 2024-10-24 DOI: 10.1016/j.mtla.2024.102275

Likun Sun, Matthew A. Steiner

{"title":"Grain boundary sensitization kinetics of cold-rolled Al–Mg alloys","authors":"Likun Sun, Matthew A. Steiner","doi":"10.1016/j.mtla.2024.102275","DOIUrl":"10.1016/j.mtla.2024.102275","url":null,"abstract":"<div><div>As super-saturated solid solutions of Al-Mg, 5XXX series aluminum alloys are susceptible to sensitization via intergranular precipitation of the anodic β-phase, which promotes intergranular corrosion, exfoliation and stress corrosion cracking under environmental conditions. This study presents important updates to a Johnson–Mehl–Avarami–Kolmogorov (JMAK) type model for low-temperature sensitization, correlating the intergranular corrosion response to impingement of locally sensitized regions surrounding discrete β-phase grain boundary precipitates. It is demonstrated that the sensitization response of these alloys can be approached as a combination of two independent contributions: the geometric configuration of grain boundaries passing through the microstructure that are most prone to sensitization, and the rate that these boundaries sensitize due to the formation of the β-phase. This allows for the large sensitization response variations found between nominally identical materials produced by different suppliers, which originate due to a lack of constraints within current cold-rolled plate tempers, to be removed as a sample-dependent linear scaling factor that is separate of the rate kinetics. The JMAK model describes the kinetics of 5xxx series sensitization with excellent accuracy across all data available in the literature. The results of the model imply that sensitization at environmental temperatures proceeds via a site-saturated process, with the β-phase forming on a set density of preferential nucleation sites. It is shown that site-saturation allows for extension of the JMAK model to non-isothermal aging profiles and supports a diffusion pathway dominated by pipe diffusion to the interface followed by precipitate growth via the collector plate mechanism.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102275"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142656572","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Machine learning predictions of spatter behavior in LPBF additive manufacturing 机器学习预测 LPBF 快速成型制造中的飞溅行为

IF 3

Materialia Pub Date : 2024-10-24 DOI: 10.1016/j.mtla.2024.102268

Parand Akbari , Masoud Zamani , Amir Mostafaei

{"title":"Machine learning predictions of spatter behavior in LPBF additive manufacturing","authors":"Parand Akbari , Masoud Zamani , Amir Mostafaei","doi":"10.1016/j.mtla.2024.102268","DOIUrl":"10.1016/j.mtla.2024.102268","url":null,"abstract":"<div><div>The adoption of additive manufacturing (AM) technologies, particularly Laser Powder Bed Fusion (LPBF), has been rapidly increasing in industries requiring high precision and complex geometries. Despite its advantages, LPBF faces challenges related to defects that affect material quality, with spatter formation being a significant concern. Spatters – tiny particles ejected during the printing process – can adversely affect the final product’s integrity by altering surface roughness and contributing to defects. This study introduces a comprehensive approach to predict the ejection velocity and direction of spatter particles using a suite of machine learning (ML) algorithms, including Random Forest, Gaussian Process Regression, Support Vector Machine, Regularized Linear Regressions, Gradient Boosting Trees, and Neural Networks. Our analysis reveals that the Neural Network model outperforms others, achieving prediction accuracies of 97.58% for spatter velocity and 88.22% for ejection direction, thus offering a substantial improvement in understanding and controlling spatter-related defects in LPBF processes. The practical implications of these predictions are profound, enabling manufacturers to adjust AM parameters in real time to minimize defects and enhance product quality. This study not only fills a gap in the current literature by providing a detailed comparative analysis of multiple ML algorithms for spatter ejection prediction but also paves the way for future research into real-time monitoring and control systems in AM.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102268"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142554518","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Investigation of kinetics of passive layer formation on various microstructures in thermo-mechanically treated steel in simulated concrete pore solution 模拟混凝土孔隙溶液中热机械处理钢材各种微结构被动层形成动力学研究

IF 3

Materialia Pub Date : 2024-10-24 DOI: 10.1016/j.mtla.2024.102277

Gisoo Daviran , S. M. Ali Seyed Mahmoud , Surya R. Kalidindi , Amir Poursaee

引用次数: 0

Optimization of pulse electrodeposition parameters for enhanced resistance to corrosion and hydrogen permeation of zinc coatings 优化脉冲电沉积参数以增强锌镀层的抗腐蚀和抗氢渗透能力

IF 3

Materialia Pub Date : 2024-10-24 DOI: 10.1016/j.mtla.2024.102273

Akshay Yadav, Akhand Pratap Singh, Chandan Srivastava

{"title":"Optimization of pulse electrodeposition parameters for enhanced resistance to corrosion and hydrogen permeation of zinc coatings","authors":"Akshay Yadav, Akhand Pratap Singh, Chandan Srivastava","doi":"10.1016/j.mtla.2024.102273","DOIUrl":"10.1016/j.mtla.2024.102273","url":null,"abstract":"<div><div>Corrosion and hydrogen permeation resistance of pulse electrodeposited Zn coatings were correlated with coating micro-texture and strain. The maximum and minimum corrosion resistance were noted for D6F75 (duty cycle 60; frequency 75 Hz) and D8F25 (duty cycle 80; frequency 25 Hz), respectively. The D6F75 coating exhibited a higher fraction of low-energy low-angle grain boundaries (LAGBs) and a preferred texture of <span><math><mrow><mo>(</mo><mrow><mn>3</mn><mover><mn>1</mn><mo>¯</mo></mover><mover><mn>2</mn><mo>¯</mo></mover><mn>1</mn></mrow><mo>)</mo></mrow></math></span> whereas the D8F25 coating exhibited comparatively low LAGBs fractions and<span><math><mrow><mspace></mspace><mo>(</mo><mrow><mn>2</mn><mover><mn>1</mn><mo>¯</mo></mover><mover><mn>1</mn><mo>¯</mo></mover><mn>0</mn></mrow><mo>)</mo></mrow></math></span> orientation. High resistance to hydrogen permeation exhibited by the D6F75 coating was attributed to hydrogen trapping within the coating, which reduced the micro-strain within the coating and diminished the hydrogen concentration gradient, thereby promoting greater surface recombination.</div></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102273"},"PeriodicalIF":3.0,"publicationDate":"2024-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142537987","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0