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Effect of sulfur impurity on the nucleation of α-Cr precipitates in nickel-based alloys 硫杂质对镍基合金中 α-Cr 沉淀成核的影响
IF 3
Materialia Pub Date : 2024-09-04 DOI: 10.1016/j.mtla.2024.102220
Yusuke Kohigashi , Takafumi Amino , Tomoaki Hamaguchi , Daichi Akahoshi , Koji Moriguchi , Hiroyuki Semba , Kazuma Ito
{"title":"Effect of sulfur impurity on the nucleation of α-Cr precipitates in nickel-based alloys","authors":"Yusuke Kohigashi ,&nbsp;Takafumi Amino ,&nbsp;Tomoaki Hamaguchi ,&nbsp;Daichi Akahoshi ,&nbsp;Koji Moriguchi ,&nbsp;Hiroyuki Semba ,&nbsp;Kazuma Ito","doi":"10.1016/j.mtla.2024.102220","DOIUrl":"10.1016/j.mtla.2024.102220","url":null,"abstract":"<div><p>Sulfur is considered an unfavorable element in metallic materials because of its potential to cause embrittlement, thereby prompting its removal. However, trace amounts of S impurities can influence the precipitation of the primary α-Cr strengthening phase in the heat-resistant 50Ni–30Cr–0.8Ti–6W–Fe alloy, and thus affect its creep strength. In this study, fine Ti<sub>2</sub>S particles were observed in heat-treated 50Ni–30Cr–0.8Ti–6W–Fe alloys through high-sensitivity, high-resolution, and wide-field element analysis using aberration-corrected scanning transmission electron microscopy. The Ti<sub>2</sub>S particles were distributed linearly with the adjacent α-Cr precipitates. The Ti<sub>2</sub>S precipitates functioned as nucleation sites for α-Cr, thereby refining and increasing the hardness of the alloy. The findings of this work challenge conventional approaches to material design and emphasize the significance of design based on fundamental principles.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102220"},"PeriodicalIF":3.0,"publicationDate":"2024-09-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142164540","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 cryogenic milling on the mechanical and corrosion properties of ODS Hastelloy-N 低温研磨对 ODS 哈斯特洛伊-N 的机械和腐蚀特性的影响
IF 3
Materialia Pub Date : 2024-09-01 DOI: 10.1016/j.mtla.2024.102215
Minsung Hong , Jeffrey E. Bickel , Ertugrul Demir , D. Kaoumi , Peter Hosemann
{"title":"Effect of cryogenic milling on the mechanical and corrosion properties of ODS Hastelloy-N","authors":"Minsung Hong ,&nbsp;Jeffrey E. Bickel ,&nbsp;Ertugrul Demir ,&nbsp;D. Kaoumi ,&nbsp;Peter Hosemann","doi":"10.1016/j.mtla.2024.102215","DOIUrl":"10.1016/j.mtla.2024.102215","url":null,"abstract":"<div><p>This study entails the fabrication of two oxide-dispersion strengthened (ODS) Hastelloy-N (HN) alloys utilizing divergent methods. The first alloy was synthesized using cryogenic attritor milling coupled with spark plasma sintering (SPS), while the second was produced via room temperature attritor milling and SPS. The ODS HN alloy derived from cryogenic milling demonstrated superior strength relative to its commercial-grade counterpart. Conversely, the alloy produced through room temperature milling exhibited lower ultimate tensile strength (UTS), attributed to manufacturing defects and the precipitation of Zr at grain boundaries. Corrosion resistance in molten FLiNaK for both ODS samples was found to be inferior compared to commercial HN. Particularly, in the room temperature-milled ODS HN, Zr present at grain boundaries appeared to dissolve more readily than in cryogenic or commercial samples, facilitating enhanced penetration by molten salt. The cryogenically-milled ODS HN contained Zr, yet it was not segregated to grain boundaries. Although the homogeneously dispersed Mo-based compound in the cryogenically-milled ODS HN augmented mechanical properties, it also accelerated corrosion propagation beyond that of the commercial-grade alloy.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102215"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095192","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
Kinetics-controlled reaction pathway and microstructure development of Ti3SiC2-TiC composite processed through reactive spark plasma sintering 通过反应火花等离子烧结工艺加工的 Ti3SiC2-TiC 复合材料的动力学控制反应路径和微观结构发展
IF 3
Materialia Pub Date : 2024-09-01 DOI: 10.1016/j.mtla.2024.102213
Nisha Verma , Sandip Bysakh , Soupitak Pal
{"title":"Kinetics-controlled reaction pathway and microstructure development of Ti3SiC2-TiC composite processed through reactive spark plasma sintering","authors":"Nisha Verma ,&nbsp;Sandip Bysakh ,&nbsp;Soupitak Pal","doi":"10.1016/j.mtla.2024.102213","DOIUrl":"10.1016/j.mtla.2024.102213","url":null,"abstract":"<div><p>Reactive spark plasma sintering of ternary Ti-Si-C system was performed using three different powder precursors systems 3Ti/Si/2C, 3Ti/SiC/C and 2Ti/TiC/Si, to explore the fundamental physics behind Ti<sub>3</sub>SiC<sub>2</sub> MAX phase formation, its stability and microstructure development, and, finally linked with its hardening and contact induced damage tolerance. Phase evolution in Ti-Si-C system is a complex phenomenon, and, present experimental conditions never yield a phase pure Ti<sub>3</sub>SiC<sub>2</sub> MAX phase, rather results in varying volume fractions of Ti<sub>3</sub>SiC<sub>2</sub>-(Ti<sub>x</sub>,Si<sub>1-x</sub>)C solid solution due to non-equilibrium processing conditions exerted by SPS processing which restricts coherent site specific diffusional jumps and promotes the formation of (Ti, Si)C solid-solution instead of well reported non-stoichiometric TiC<sub>x</sub>. 3Ti/SiC/C precursor was the best candidate for processing composite with highest yields of Ti<sub>3</sub>SiC<sub>2</sub>. Phase evolution is guided by the free energy of formation of different phases and chemical affinity amongst the constituent elements rather than the equilibrium phase diagram of the Ti-Si-C system. Presence of free carbon, low temperature liquid phase and slow heating rate are the key requirements for forming phase pure Ti<sub>3</sub>SiC<sub>2</sub>, where excess free carbon reduces the stability of Ti<sub>3</sub>SiC<sub>2</sub> via decarburization. Non-equilibrium processing conditions impart nano-precipitation of coherent hexagonal Ti<sub>3</sub>SiC<sub>2</sub> precipitates within a cubic (Ti, Si)C matrix with a distinct orientation relation of (220)<sub>matrix</sub> ║(0004)<sub>precipitate</sub> and &lt;114&gt;<sub>matrix</sub> ║&lt;2–1–10&gt;<sub>precipitate</sub> that has never been reported, instead of growing highest density plane of <em>hcp</em>-on-<em>fcc</em> matrix. Coherency strain and fine interlocking microstructure of the as-processed composite experiences ≈36 % of enhancement in hardness followed by an improved contact damage for the as-processed composite.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102213"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095191","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 TiN coating on suppressing Ce-Fe interaction under irradiation TiN 涂层对抑制辐照下 Ce-Fe 相互作用的影响
IF 3
Materialia Pub Date : 2024-09-01 DOI: 10.1016/j.mtla.2024.102221
Jian Gan , Chao Jiang , Yizhi Zhang , Yifan Zhang , Jiawei Song , Ke Xu , Benson Kunhung Tsai , Xuanyu Sheng , Haiyan Wang , Yinbin Miao , Peter Mouche , Kun Mo , Bei Ye
{"title":"Effect of TiN coating on suppressing Ce-Fe interaction under irradiation","authors":"Jian Gan ,&nbsp;Chao Jiang ,&nbsp;Yizhi Zhang ,&nbsp;Yifan Zhang ,&nbsp;Jiawei Song ,&nbsp;Ke Xu ,&nbsp;Benson Kunhung Tsai ,&nbsp;Xuanyu Sheng ,&nbsp;Haiyan Wang ,&nbsp;Yinbin Miao ,&nbsp;Peter Mouche ,&nbsp;Kun Mo ,&nbsp;Bei Ye","doi":"10.1016/j.mtla.2024.102221","DOIUrl":"10.1016/j.mtla.2024.102221","url":null,"abstract":"<div><p>Advanced cladding is critical for fast reactors with the adequate thermal conductivity, mechanical stability and radiation tolerance of the cladding base material, corrosion resistance and high temperature coolant compatibility of the cladding surface, and chemical stability of the cladding inner wall against fuel cladding chemical interaction (FCCI). The preliminary results of recent ion irradiation studies of two diffusion-couple samples of cerium (Ce)/oxide-dispersion strengthened steel (ODS) and Ce/TiN/ODS, irradiated with 80 MeV xenon (Xe) ions to 100 displacements per atom (dpa) at 500°C, are summarized. Significant Ce-Fe interaction occurred in the Ce/ODS sample, and no noticeable Ce-Fe interaction was found in the Ce/TiN/ODS sample. It shows the effectiveness of 1-µm TiN diffusion barrier coated by the pulsed laser deposition on suppressing Ce-Fe interaction, a major contributor to FCCI in cladding. Density function theory (DFT) calculations of the impurity diffusivities of Ce and Fe within the Ti sublattice of TiN were performed to assist a mechanistic understanding of the experimental results.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102221"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142149167","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 refinement of Fe4N compound layer in nitrided steel 氮化钢中 Fe4N 化合物层的晶粒细化
IF 3
Materialia Pub Date : 2024-09-01 DOI: 10.1016/j.mtla.2024.102217
Norimitsu Koga , Atsushi Yamashita , Ryusei Kato , Ryosuke Kanebu , Kenta Miyake , Yohei Hashimoto
{"title":"Grain refinement of Fe4N compound layer in nitrided steel","authors":"Norimitsu Koga ,&nbsp;Atsushi Yamashita ,&nbsp;Ryusei Kato ,&nbsp;Ryosuke Kanebu ,&nbsp;Kenta Miyake ,&nbsp;Yohei Hashimoto","doi":"10.1016/j.mtla.2024.102217","DOIUrl":"10.1016/j.mtla.2024.102217","url":null,"abstract":"<div><p>This study elucidated the microstructure of the Fe<sub>4</sub>N (γ’) compound layer in specimens subjected to the nitriding to the specimens with various finished surfaces. Gyrofinishing produces a specimen surface with an ultra-fine-grained (UFGed) structure and a rough surface, whereas the buff-finished specimen exhibited a coarse grain but smooth surface. The γ’ grains formed on the gyrofinished specimens after nitriding were considerably finer and more equiaxial compared with those on the buff-finished specimen. The γ’ nucleated from the grain boundary in the matrix, indicating that the grain boundaries act as a nucleation site. Therefore, the UFGed structure promotes the nucleation of γ’ during the nitriding, resulting in fine grains. Numerous pores were formed in the γ’ layer of the gyrofinished specimen owing to the rough surface. The UFGed structure and surface roughness before nitriding are key factors for controlling the microstructure in the γ’ compound layer.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102217"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095190","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
Editors for Materialia 材料学》编辑
IF 3
Materialia Pub Date : 2024-09-01 DOI: 10.1016/S2589-1529(24)00220-5
{"title":"Editors for Materialia","authors":"","doi":"10.1016/S2589-1529(24)00220-5","DOIUrl":"10.1016/S2589-1529(24)00220-5","url":null,"abstract":"","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102223"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589152924002205/pdfft?md5=f80c6b7ff851edcbd6845fcbd5923ba0&pid=1-s2.0-S2589152924002205-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142152061","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
High strain-rate strength response of single crystal tantalum through in-situ hole closure imaging experiments 通过原位孔闭合成像实验获得单晶钽的高应变速率强度响应
IF 3
Materialia Pub Date : 2024-09-01 DOI: 10.1016/j.mtla.2024.102219
J. Lind, R.A. Carson, N. Bertin, M. Nelms
{"title":"High strain-rate strength response of single crystal tantalum through in-situ hole closure imaging experiments","authors":"J. Lind,&nbsp;R.A. Carson,&nbsp;N. Bertin,&nbsp;M. Nelms","doi":"10.1016/j.mtla.2024.102219","DOIUrl":"10.1016/j.mtla.2024.102219","url":null,"abstract":"<div><p>The properties of crystalline materials often depend on directionality and operating conditions. Specifically, the strength of materials can depend anisotropically on crystal direction and the loading condition. To probe these effects, a preliminary series of high strain-rate (<span><math><mrow><mo>&gt;</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>5</mn></mrow></msup></mrow></math></span>/s) strength plate-impact hole closure experiments were performed on high purity single crystal tantalum cubes. The orientation of the single crystals with respect to impact/loading were varied to provide data to inform crystal plasticity modeling efforts. The experiments consist of in-situ high-resolution X-ray radiographic imaging of the hole collapse under dynamic compression conditions to infer the material strength via its resistance to closure at increasing levels of plastic strain. The experiments are compared against hydrocode simulation predictions. A comparison with simple elastic perfectly plastic strength model predictions is presented to elucidate the response of the different crystal orientations at high strain-rate and large plastic strains.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102219"},"PeriodicalIF":3.0,"publicationDate":"2024-09-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142095189","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 gadolinia–stabilized zirconia nanoparticles manufactured from Mist CVD on the mechanical properties of ceramics sintered by SPS 雾状 CVD 制造的钆稳定氧化锆纳米粒子对 SPS 烧结陶瓷机械性能的影响
IF 3
Materialia Pub Date : 2024-08-24 DOI: 10.1016/j.mtla.2024.102216
Rong Tu , Xiangyu Chen , Yingqiu Zheng , Chao Song , Xiaoping Guo , Meijun Yang , Guoqiang Luo , Song Zhang , Takashi Goto
{"title":"Effect of gadolinia–stabilized zirconia nanoparticles manufactured from Mist CVD on the mechanical properties of ceramics sintered by SPS","authors":"Rong Tu ,&nbsp;Xiangyu Chen ,&nbsp;Yingqiu Zheng ,&nbsp;Chao Song ,&nbsp;Xiaoping Guo ,&nbsp;Meijun Yang ,&nbsp;Guoqiang Luo ,&nbsp;Song Zhang ,&nbsp;Takashi Goto","doi":"10.1016/j.mtla.2024.102216","DOIUrl":"10.1016/j.mtla.2024.102216","url":null,"abstract":"<div><p>Zirconia is an engineering ceramic material with excellent comprehensive properties. However, it suffers from the inherent disadvantage of low fracture toughness. To improve its fracture toughness, Gd<sub>2</sub>O<sub>3</sub> is an effective stabilizer. In the present study, Gd<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub> composite powders were synthesized using the Mist CVD method. Following synthesis, these powders were pressed through spark plasma sintering. The crystallinity of the Gd<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub> powders improved as the deposition temperature increased from 600°C to 900°C. The tetragonality (c/<span><math><msqrt><mn>2</mn></msqrt></math></span>a) of the Gd–TZP composites increased from 0.99941 to 1.01571 as the Gd<sub>2</sub>O<sub>3</sub> content increased from 2 mol% to 4 mol%, but it decreased when the content reached 5 mol%. The Gd<sub>2</sub>O<sub>3</sub>–ZrO<sub>2</sub> nanoparticles produced via the Mist CVD approach presented a unique hollow spherical structure. Under moist chemical vapor deposition (CVD) conditions with 4 mol% Gd<sub>2</sub>O<sub>3</sub> at 1400°C, the Gd–TZP composites exhibited fracture toughness and hardness values of approximately 12.03 ± 0.15 MPa·m<sup>1/2</sup> and 12.16 ± 0.17 GPa, respectively.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102216"},"PeriodicalIF":3.0,"publicationDate":"2024-08-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142083575","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 hyaluronic acid-based viscosupplementation on cartilage material properties 基于透明质酸的粘度补充剂对软骨材料特性的影响
IF 3
Materialia Pub Date : 2024-08-23 DOI: 10.1016/j.mtla.2024.102218
Emilie Patois , Marie Gaumet , Isabelle Badoud , Ivo Dellavia , Patrick Ammann
{"title":"Effect of hyaluronic acid-based viscosupplementation on cartilage material properties","authors":"Emilie Patois ,&nbsp;Marie Gaumet ,&nbsp;Isabelle Badoud ,&nbsp;Ivo Dellavia ,&nbsp;Patrick Ammann","doi":"10.1016/j.mtla.2024.102218","DOIUrl":"10.1016/j.mtla.2024.102218","url":null,"abstract":"<div><p>Viscosupplementation by intra-articular injections of hyaluronic acid (HA) is used to treat symptomatic osteoarthritis. Exogenous HA remains in the joint cavity for a short period of time (days) while claimed pain relief period lasts over months. There is a clear lack of understanding of viscosupplementation mechanism of action. Here, we hypothesize that HA penetrates the cartilage and contributes to the restoration of its mechanical quality.</p><p>Confocal microscopy and bio-indentation were used to confirm HA penetration into cartilage and modulation of cartilage quality. Bio-indentation was performed on rat distal femurs incubated overnight in HA solutions, using phosphate buffered saline (PBS) as control. For this proof-of-concept evaluation, measurements of elastic modulus (MPa) and of maximal force (µN) were recorded before and immediately after exposure with HA, as well as after an additional washout with PBS. Cartilage thickness at the site of indentation was evaluated by contrast enhanced computed tomography with an ionic contrast agent. Indentation depths were located in the upper part of hyaline cartilage. Ostenil®, commercial product containing 1 % HA, induced a decrease in indentation depth in the range of forces influencing the whole cartilage thickness, together with an increase of the elastic modulus. Then, bio-indentation and size distribution of HA chains via SEC-SLS were assessed for a range of commercially available products. The results showed higher modulation of cartilage quality in the presence of 0.25–1 MDa HA chains.</p><p>The present <em>in vitro</em> study suggests that HA modulates cartilage quality and might thus explain the long-term beneficial effect of viscosupplementation.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"38 ","pages":"Article 102218"},"PeriodicalIF":3.0,"publicationDate":"2024-08-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.sciencedirect.com/science/article/pii/S2589152924002151/pdfft?md5=2797398925ac4a27b7fbc620e4301f8a&pid=1-s2.0-S2589152924002151-main.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142136377","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
Superlubricity in solid lubricated sliding and rolling contacts 固体润滑滑动和滚动接触的超润滑性
IF 3
Materialia Pub Date : 2024-08-18 DOI: 10.1016/j.mtla.2024.102212
Ali Zayaan Macknojia , Mohammad Eskandari , Khalil Omotosho , Maria Cinta Lorenzo Martin , Aditya Ayyagari , Diana Berman
{"title":"Superlubricity in solid lubricated sliding and rolling contacts","authors":"Ali Zayaan Macknojia ,&nbsp;Mohammad Eskandari ,&nbsp;Khalil Omotosho ,&nbsp;Maria Cinta Lorenzo Martin ,&nbsp;Aditya Ayyagari ,&nbsp;Diana Berman","doi":"10.1016/j.mtla.2024.102212","DOIUrl":"10.1016/j.mtla.2024.102212","url":null,"abstract":"<div><p>Superlubricity, or near zero friction is a highly desired lubrication state for a wide range of practical applications. Although such application scenarios often involve complex contact geometries, solid lubricant technologies, including previous efforts on achieving superlubricity, are almost entirely in linear sliding test conditions. This report demonstrates an experimental pathway to yield superlubricity in rolling-sliding contact conditions using solid-lubricant materials. Ti<sub>3</sub>C<sub>2</sub>X based solid lubricant was tested under complex sliding-rolling conditions at engineering-significant contact pressures. The material's compression and inter-layer shearing result in material reconstruction to pose superlubricity. High-resolution transmission electron microscopy analysis, complemented by multi-scan Raman spectroscopy showed the formation of a robust amorphous tribolayer. This demonstration is expected to not only advance the applied aspects in the development of oil-free solid lubricants but also push the boundaries of fundamental understanding of materials’ structure-property relations across physical states.</p></div>","PeriodicalId":47623,"journal":{"name":"Materialia","volume":"37 ","pages":"Article 102212"},"PeriodicalIF":3.0,"publicationDate":"2024-08-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142044856","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
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