Marta Janusz-Skuza , Agnieszka Bigos , Fabrizio Valenza , Sofia Gambaro , Magdalena Bieda , Marcela E. Trybula , Joanna Wojewoda-Budka
{"title":"Dissolution wetting of liquid copper on steel substrate – phenomena occurring during liquid-solid interaction","authors":"Marta Janusz-Skuza , Agnieszka Bigos , Fabrizio Valenza , Sofia Gambaro , Magdalena Bieda , Marcela E. Trybula , Joanna Wojewoda-Budka","doi":"10.1016/j.matchar.2025.114911","DOIUrl":"10.1016/j.matchar.2025.114911","url":null,"abstract":"<div><div>The present study is focused on the detailed characterization of morphology, microstructure, chemical and phase analysis of the Cu/steel interface zone obtained as a result of the wetting tests using the sessile drop method. The methodology involved contact heating of a copper piece placed on a highly deformed steel substrate at 1130 °C in an argon atmosphere. The experiment was supported with molecular dynamics simulations on early stages of Cu/Fe contact at high temperature. Plastic deformation of a P265GH steel substrate was caused by the explosive welding, which took place prior to the wetting. The experiments revealed that after 40 s, the wetting angle reached a value of 10°, which did not change until the end of the test. This confirms the very good and fast wetting of the steel substrate by liquid copper. Atomistic simulations stay in agreement with the experiment revealing very rapid wetting. Microstructural observations of the Cu/steel couples using electron microscopy techniques showed a high-quality interface, without any voids or cracks. After the wetting experiment, the weighted average of ferrite grain size of the steel substrate (38 μm) did not change. The microscopy observations indicated that the copper diffused into the substrate along the grain boundaries of the steel, causing the Fe-based grains to separate and move towards the copper drop area. This all confirmed that the effective and fast dissolution wetting mechanism takes place during liquid Cu-steel interaction.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114911"},"PeriodicalIF":4.8,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143592595","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}
Ye Zhang , Zonghan Wang , Xiufang Cui, Minghan Zhao, Xin Wen, Junyan Wang, Mengran Zha, Xiaotian Fan, Guo Jin
{"title":"Effect of laser-induced protective materials/rare earth boride double protection structure on the microstructure and properties of multi-pass ER2209 underwater direct laser energy deposition coating","authors":"Ye Zhang , Zonghan Wang , Xiufang Cui, Minghan Zhao, Xin Wen, Junyan Wang, Mengran Zha, Xiaotian Fan, Guo Jin","doi":"10.1016/j.matchar.2025.114906","DOIUrl":"10.1016/j.matchar.2025.114906","url":null,"abstract":"<div><div>Underwater direct laser energy deposition technology has emerged as a prominent research focus in the field of underwater in-situ restoration due to its ease of operation and high precision in repairs. This study successfully prepared an ER2209 underwater in-situ cladding layer using a self-designed underwater laser-induced self-protection material. However, achieving a balance between the forming quality of the underwater repair layer and its critical service performance remains a significant research challenge. In this investigation, we introduced rare earth boride (LaB<sub>6</sub>) into the underwater self-protective material, thereby constructing a double-layer composite protection structure. The results indicate that the incorporation of rare earth elements from the LaB<sub>6</sub> protective layer enhances the purification of the molten pool, leading to a more uniform internal structure of the underwater repair coating. The solution strengthening provided by the small atomic radius of the B element, combined with the lattice distortion effect of the larger atomic radius La element, contributed to improvements in microhardness and abrasion resistance of the underwater repair layer. In summary, the underwater in-situ cladding coating, characterized by superior forming quality and optimal properties, has been successfully prepared using an underwater self-purification/rare earth boride double-layer protective material structure. This advancement offers significant insights for the field of underwater in-situ laser repair.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114906"},"PeriodicalIF":4.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577132","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}
{"title":"Achieving basal texture in pure titanium: Process implementation and mechanical property evaluation","authors":"Mélaine Tournay, Jean-Sébastien Lecomte, Christophe Schuman, Yudong Zhang, Éric Fleury","doi":"10.1016/j.matchar.2025.114898","DOIUrl":"10.1016/j.matchar.2025.114898","url":null,"abstract":"<div><div>The strong crystallographic texture in titanium sheets leads to anisotropic mechanical properties, complicating forming processes. In this article, we outline a straightforward industrial thermomechanical process to achieve a basal texture in commercially pure titanium. This process involves cold rolling followed by annealing, without needing to modify the sheet's initial grain size or its mechanical properties (E, Rm, <span><math><mi>ε</mi><mo>%</mo></math></span>). Notably, while the basal texture is seldom intentionally produced in titanium sheets, it is well-documented in magnesium alloys, where it promotes isotropic properties within the sheet plane. Tensile tests, aided by image correlation, confirm that planar isotropy and an improved deep-drawability (measured by the Lankford coefficient) are attained. Initial EBSD analysis determined the optimal temperature and annealing time. The article will detail the rolling-annealing protocol necessary to achieve this desirable basal texture.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114898"},"PeriodicalIF":4.8,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143601610","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}
Xinke Li , Haoran Zhao , Jilong Ren , Hailong Lv , Yukun An , Changjiang Zhang , Ertuan Zhao
{"title":"In-situ characterization of microstructure evolution mechanism of TiB reinforced titanium matrix composites at different cooling rates","authors":"Xinke Li , Haoran Zhao , Jilong Ren , Hailong Lv , Yukun An , Changjiang Zhang , Ertuan Zhao","doi":"10.1016/j.matchar.2025.114910","DOIUrl":"10.1016/j.matchar.2025.114910","url":null,"abstract":"<div><div>In order to study the microstructure evolution of titanium matrix composites at different cooling rates, titanium matrix composites with a nominal composition of 3 vol% TiB/Ti-6Al-4Sn-10Zr-1Mo-1Nb-1W-0.35Si were prepared. The microstructure evolution behavior was characterized in situ by back scattered electron microscope, electron back scattering diffraction and laser confocal microscope. The results indicate that the α phases initially nucleate heterogeneously on the TiB phase, and end the growth in the length direction due to the hindrance of the original β grain boundaries, TiB phases and the coexisting α phases. The size of α phase gradually decreases as the cooling rate increases due to enhanced phase-to-phase hindrance and shorter growth times. At a cooling rate of 25 °C/s, the high undercooling formed by the high cooling rate provides the driving energy for the nucleation of the α and α’ phases. The average length of the α and α’ phases is about 13 μm, and the aspect ratio is about 14. And the compressive yield strength of the composites increased by 12.3 % and the compressive strength by 9.9 % due to fine grain strengthening and precipitation of α’ phase.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114910"},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561906","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}
Zhang Zhexuan , Zhou Yang , Li Xue , Wu Chong , Zihua Zhang , Li Shibo , Huang Zhenying
{"title":"Fabrication mechanism and high-temperature properties of bicontinuous Ti2AlN/TiAl composites: Experimental, DFT, and DL investigations","authors":"Zhang Zhexuan , Zhou Yang , Li Xue , Wu Chong , Zihua Zhang , Li Shibo , Huang Zhenying","doi":"10.1016/j.matchar.2025.114886","DOIUrl":"10.1016/j.matchar.2025.114886","url":null,"abstract":"<div><div>Template forming and pressureless sintering (PS) were used to create porous Ti<sub>2</sub>AlN precursors, which served as reinforcements in bicontinuous Ti<sub>2</sub>AlN/TiAl composites via reactive melt infiltration (RMI) of the TiAl matrix. Key reactions limiting decomposition and promoting composite formation were systematically studied. The optimal sintering temperature for the porous Ti<sub>2</sub>AlN precursors was found to be 1200 °C, while the infiltrated TiAl matrix was processed at 1500 °C. Bicontinuous morphologies, phase compositions, and microstructural distributions of the composites were analyzed using EBSD. A deep learning (DL) model enhanced with image processing techniques classified various phases and microstructures with approximately 80 % accuracy. The interface structure within the composites was characterized by TEM, leading to a density functional theory (DFT) model that discussed adhesion, bonding, and hybridization at the interface. Mechanical properties at room temperature (RT) and elevated temperatures showed compressive strengths of 1354 MPa at RT and 751 MPa at 800 °C, indicating improvements of 13.5 % and 12.6 %, respectively, compared to those of the TiAl matrix under identical conditions. Additionally, intrinsic physical properties of potential phases were estimated alongside developed high-temperature compression models. Insights into high-temperature oxidation mechanisms were derived from analyses on both phase composition and morphology of the oxide layer.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114886"},"PeriodicalIF":4.8,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577131","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}
Mingfei Wang , Bo Peng , Jia Sun , Xiaowen Wang , Guoliang Li , Xianlong Wang , Jinchuan Jie , Tingju Li
{"title":"Simultaneously enhancing mechanical and bonding property of Cu-Ni-Si/1010 steel bimetal laminated composites via annealing","authors":"Mingfei Wang , Bo Peng , Jia Sun , Xiaowen Wang , Guoliang Li , Xianlong Wang , Jinchuan Jie , Tingju Li","doi":"10.1016/j.matchar.2025.114908","DOIUrl":"10.1016/j.matchar.2025.114908","url":null,"abstract":"<div><div>Annealing is an effective method for improving mechanical properties of bimetallic laminated composites (BLCs). The temperatures of 400 °C, 450 °C, 500 °C, and 550 °C were selected to investigate microstructure evolution and mechanical behaviors of Cu-Ni-Si/1010 steel BLC. Microstructure analysis shows that the size and volume fraction of nano-strengthening δ-Ni<sub>2</sub>Si phase increase with temperature in Cu-Ni-Si. Annealing ameliorates the elemental enrichment at the interface by promoting the diffusion of Ni and Si elements into 1010 steel. The uniaxial tensile results indicate that yield strength, ultimate tensile strength, and elongation of BLCs increase first and then decrease with increasing annealing temperature. The strength improvement is attributed to the enhanced precipitation strengthening of Cu-Ni-Si and heterogeneous deformation-induced strengthening, and the ductility improvement results from the increased plastic deformation ability of 1010 steel. Tensile shear test indicates that fracture occurs at the Cu-Ni-Si side when the annealing temperature is below 450 °C, and when the temperature is higher than 500 °C the interface begins to debond. The thickening of the diffusion layer and the strengthening of Cu-Ni-Si with increasing temperature enhance the shear strength, however, excessively high temperatures lead to the formation of interfacial voids, resulting in the weakening bonding strength. Overall, the BLC after annealing at 450 °C exhibits the excellent mechanical performance. This study provides a new approach for enhancing the strength and plasticity of BLCs that are not suitable for deformation.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114908"},"PeriodicalIF":4.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549691","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}
Wenbo Sun , Zelin Song , Haitao Liu , Junbiao Wang , Chuang Liu , Chaorun Si
{"title":"Effect of surface nanocrystallization pretreatment on the microstructure and fretting wear of Ti-6Al-4V titanium alloy plasma nitrided layer","authors":"Wenbo Sun , Zelin Song , Haitao Liu , Junbiao Wang , Chuang Liu , Chaorun Si","doi":"10.1016/j.matchar.2025.114884","DOIUrl":"10.1016/j.matchar.2025.114884","url":null,"abstract":"<div><div>Titanium alloys are widely used in aerospace and biomedical fields due to their excellent strength-to-weight ratio, yet their poor surface wear resistance remains a critical limitation. While plasma nitriding (PN) has proven effective in enhancing surface hardness of Ti-6Al-4V, conventional PN-treated specimens still exhibit insufficient nitride layer thickness and inadequate hardness gradients under severe fretting conditions. The potential of surface nanocrystallization (SNC) as an innovative pretreatment to synergistically enhance nitriding efficiency and wear resistance has not been systematically investigated. This paper employs shot peening (SP) technology to achieve SNC on Ti-6Al-4V titanium alloy and examines its impact on the microstructural characteristics and fretting wear performance of plasma nitrided layers. The results show that, compared to PN samples without SNC treatment, SNC-pretreated PN samples exhibit a 27 % increase in nitrided layer thickness, reaching 4.123 μm, a 26 % enhancement in nano-hardness, reaching 13.02 GPa, and smaller TiN nanograin sizes. SNC-treated PN samples penetrate the nitrided layer at a 50 N load, whereas untreated PN samples reach the substrate at a 30 N load. Additionally, SNC-treated PN samples demonstrate lower wear scar depth and wear rates across all loads. The enhanced wear resistance of the nitrided layer with SNC is primarily due to the increased thickness of the nitrided layer and the hardness enhancement from the reduced TiN grain size.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114884"},"PeriodicalIF":4.8,"publicationDate":"2025-03-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143577130","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}
Bin Tian, Xinzhu Gan, Zhigang Wang, Yong Xu, Lin Wang, Conghe Xu, Ling Li
{"title":"Direct growth of TiO2 nanosheet arrays on ZrO2 fibers: A coated structure for blocking thermal radiation","authors":"Bin Tian, Xinzhu Gan, Zhigang Wang, Yong Xu, Lin Wang, Conghe Xu, Ling Li","doi":"10.1016/j.matchar.2025.114885","DOIUrl":"10.1016/j.matchar.2025.114885","url":null,"abstract":"<div><div>In this study, TiO<sub>2</sub> nanosheets were directly grown on ZrO<sub>2</sub> fibers by employing a solvothermal technique without requiring a TiO<sub>2</sub> seed layer, targeting thermal radiation shielding applications. The crystalline form and microstructure of the TiO<sub>2</sub> nanosheets were characterized using SEM, Raman, XRD, XPS, and TEM. The infrared thermal radiation extinction properties of the TiO<sub>2</sub> nanosheets were evaluated using DRS and effective specific extinction coefficient (<em>e</em>*), and their thermal endurance at high temperatures was also assessed. The results showed that, within the infrared band of 2.5 to 8.5 μm, the TiO<sub>2</sub> nanosheet arrays with a thickness of 423 nm enhanced the e* of ZrO<sub>2</sub> fibers by 58.59 %. At similar coating thicknesses, nanosheet coatings exhibited superior thermal radiation shielding performance compared to nanoparticle coatings. These findings suggest that ZrO<sub>2</sub> fibers loaded with TiO<sub>2</sub> nanosheets are promising candidates for thermal radiation shielding in aerogels or extreme environmental conditions.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114885"},"PeriodicalIF":4.8,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549758","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}
{"title":"Fiber textures revisited","authors":"Wolfgang Pantleon","doi":"10.1016/j.matchar.2025.114900","DOIUrl":"10.1016/j.matchar.2025.114900","url":null,"abstract":"<div><div>The texture of model fiber composites containing a single drawn tungsten wire in a chemically vapor-deposited tungsten matrix is investigated spatially resolved by electron backscatter diffraction. The cylindrical symmetry of the model composites gives rise to different types of unique fiber textures. To obtain a proper texture classification, a concise analysis is necessary and classical descriptions of fiber textures are revisited. For the model composite, fiber texture types as cyclic ring fiber textures are discovered which have been postulated theoretically but never reported experimentally before. The matrix of the tungsten-fiber reinforced tungsten model composites shows a preferred alignment of 〈100〉 directions with the radial direction due to oriented growth and rotational symmetry about the growth direction giving rise to a cyclic 〈100〉 ring fiber texture. The drawn tungsten wires show strong alignment of 〈110〉 directions with the wire axis, in general indicating a central 〈110〉 fiber texture becoming broader towards the perimeter of the wire. A systematic inclination of the fiber axis occurs with increasing distance from the wire center resulting in a 〈110〉 single cone fiber texture. A weaker secondary alignment of 〈110〉 directions radially reveals the presence of a cyclic {110}〈110〉 fiber texture component. Additionally, frequent occurrence of twinning in body-centered cubic tungsten is observed: growth twins in the matrix constitute a separate cyclic 〈221〉 ring fiber texture component. Incidental twin orientation relationships are revealed abundantly in the wire. They are rationalized as being a pure geometrical consequence of the 〈110〉 fiber texture.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114900"},"PeriodicalIF":4.8,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143549759","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}
Guangrui Xie , Xiang Gui , Xia Liu , Yang Yang , Yongjie Cao , Dan Liu , Kang Yang , Shihong Zhang
{"title":"Insight into the ablation behaviors and mechanism of duplex surface treated TC11 titanium alloy via dynamic shot peening and plasma nitriding","authors":"Guangrui Xie , Xiang Gui , Xia Liu , Yang Yang , Yongjie Cao , Dan Liu , Kang Yang , Shihong Zhang","doi":"10.1016/j.matchar.2025.114887","DOIUrl":"10.1016/j.matchar.2025.114887","url":null,"abstract":"<div><div>Titanium alloys demonstrate exceptional mechanical properties and low density, positioning them as potential alternatives to gun steel. Nevertheless, the weak ablative resistance of titanium alloys limits their applications. To address the ablation issue of titanium alloys, an innovative duplex treatment combining shot peening and plasma nitriding was applied to TC11 titanium alloy. The effects of shot peening intensity on the structure, elemental distribution, hardness, and ablation resistance of the nitrided layer were investigated through X-ray diffraction, optical microscopy, surface profilometry, scanning electron microscopy, electron probe microanalysis, transmission electron microscopy, and Vickers microhardness test, respectively. The shot peening pretreatments produced various crystal defects. The defects promote the nitrogen diffusion and thus contribute to a thick and hard nitrided layer (including TiN and Ti<sub>2</sub>N phase), which act as a thermal protection shield. On the other hand, it is found that the defects provide aluminum diffusion paths, and forming an aluminum-rich zone, which produced protective Al<sub>2</sub>O<sub>3</sub> coating during ablation process. The plasma nitrided TC11 with shot peening intensity pretreatment showed a 91 % reduction in mass ablation compared to untreated specimens, which provides a new clue for improving the ablation and impact resistance of titanium alloys.</div></div>","PeriodicalId":18727,"journal":{"name":"Materials Characterization","volume":"223 ","pages":"Article 114887"},"PeriodicalIF":4.8,"publicationDate":"2025-03-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143561907","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}