International Journal of Refractory Metals & Hard Materials最新文献

Study on the microstructure and properties of brazed diamond with Nb2O5-added NiCr filler alloy nb2o5 - NiCr填充合金钎焊金刚石的组织与性能研究

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-25 DOI: 10.1016/j.ijrmhm.2025.107512

Jian Zhang , Yongwei Guo , Qi Xu , Yaowen Hu , Jiahao Li , Junhao Sun , Ping Peng

{"title":"Study on the microstructure and properties of brazed diamond with Nb2O5-added NiCr filler alloy","authors":"Jian Zhang , Yongwei Guo , Qi Xu , Yaowen Hu , Jiahao Li , Junhao Sun , Ping Peng","doi":"10.1016/j.ijrmhm.2025.107512","DOIUrl":"10.1016/j.ijrmhm.2025.107512","url":null,"abstract":"<div><div>This study systematically investigates the microstructure, diamond thermal damage and grinding performance of brazed diamond with pure Ni<img>Cr, Nb-added, and Nb<sub>2</sub>O<sub>5</sub>-added Ni<img>Cr filler alloy, combining high-temperature brazing experiments with the first-principles calculations. The experimental results showed that compared to pure Ni<img>Cr filler alloy, both Nb and Nb<sub>2</sub>O<sub>5</sub> addition improve the overall performance of brazed diamond, with Nb<sub>2</sub>O<sub>5</sub> showing a more significant modification effect. The Nb<sub>2</sub>O<sub>5</sub>-added Ni<img>Cr filler alloy induces the formation of NbNi and B<sub>2</sub>O<sub>3</sub> in the brazing layer, which effectively inhibit diamond graphitization by mitigating the catalytic effect of Ni at the interface and reducing the formation of hard and brittle phases (e.g., Ni<sub>3</sub>B, CrB, etc.). This helps to prevent crack initiation at the diamond-brazed filler alloy interface. Furthermore, Nb<sub>2</sub>O<sub>5</sub> enhances chemical reactions between Cr and C at the brazed diamond interface, resulting in the formation of structurally refined Cr<img>C carbides at the interface, which strengthen the interface bonding. First-principles calculations reveal that the interfacial work of separation for the Nb<sub>2</sub>O<sub>5</sub>-added Ni<img>Cr filler alloy system increases by 2.04 J/m<sup>2</sup> and 0.28 J/m<sup>2</sup>, compared to the pure Ni<img>Cr and Nb-added Ni<img>Cr filler alloy systems, respectively. The coexistence of Nb and O enhances electron cloud overlap between Cr and C atoms at the interface and reduces the peak at the of Fermi level for C layer, indicating the stronger interfacial bonding and the lower graphitization of diamond.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"135 ","pages":"Article 107512"},"PeriodicalIF":4.6,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369762","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

Effect of Mo content on the thermal compression properties and microstructure evolution of WMo-Al2O3 alloys Mo含量对WMo-Al2O3合金热压缩性能及组织演变的影响

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-25 DOI: 10.1016/j.ijrmhm.2025.107513

Changji Wang , Liya Cui , Shizhong Wei , Xuesong Li , Chong Chen , Caihong Dou , Ziwen Zhao , Kunming Pan

{"title":"Effect of Mo content on the thermal compression properties and microstructure evolution of WMo-Al2O3 alloys","authors":"Changji Wang , Liya Cui , Shizhong Wei , Xuesong Li , Chong Chen , Caihong Dou , Ziwen Zhao , Kunming Pan","doi":"10.1016/j.ijrmhm.2025.107513","DOIUrl":"10.1016/j.ijrmhm.2025.107513","url":null,"abstract":"<div><div>A WMo–Al<sub>2</sub>O<sub>3</sub> composite powder was prepared using a wet chemical method, followed by cold isostatic pressing and two-stage sintering (medium-frequency induction sintering and hot isostatic pressing). Subsequently, a WMo–Al<sub>2</sub>O<sub>3</sub> alloy was fabricated. The thermal compression properties of the WMo–Al<sub>2</sub>O<sub>3</sub> alloy were evaluated with different Mo contents (10, 20, 30, 40, and 50 at.%) at high temperatures (1300 °C–1600 °C). The findings revealed that introducing Mo through doping markedly refines the grain size, as determined by analyzing the thermal compression behavior and microstructural evolution of WMo–Al<sub>2</sub>O<sub>3</sub> alloys with varying Mo contents. The grain size of the W–Al<sub>2</sub>O<sub>3</sub> alloy was ∼30.12 μm, while that of a W–30Mo–Al<sub>2</sub>O<sub>3</sub> alloy after two-stage sintering was 25.61 μm, which is ∼4.51 μm smaller, corresponding to a grain size reduction of 14.97 %. Under the compression test condition of 1300 °C and 0.005 s<sup>−1</sup>, the compressive strength of WMo–Al<sub>2</sub>O<sub>3</sub> alloys with different Mo contents was higher than that of W–Al<sub>2</sub>O<sub>3</sub>, indicating that Mo incorporation enhances the high-temperature mechanical performance of WMo–Al<sub>2</sub>O<sub>3</sub> alloys. Moreover, the geometric necessary dislocation density of the W–30Mo–Al<sub>2</sub>O<sub>3</sub> alloy was the highest among the tested samples, corresponding to the highest compressive strength.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"135 ","pages":"Article 107513"},"PeriodicalIF":4.6,"publicationDate":"2025-10-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369761","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

Synergistic effect of NiB/Co variation on microstructural evolution, shape distortion, mechanical, and thermal properties of 90W-10(NiB-Co) alloys NiB/Co变化对90W-10（NiB-Co）合金组织演变、形状变形、力学和热性能的协同效应

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-24 DOI: 10.1016/j.ijrmhm.2025.107511

Deepak Adhikari , Pradyut Sengupta , Mayadhar Debata

{"title":"Synergistic effect of NiB/Co variation on microstructural evolution, shape distortion, mechanical, and thermal properties of 90W-10(NiB-Co) alloys","authors":"Deepak Adhikari , Pradyut Sengupta , Mayadhar Debata","doi":"10.1016/j.ijrmhm.2025.107511","DOIUrl":"10.1016/j.ijrmhm.2025.107511","url":null,"abstract":"<div><div>The present investigation delves into the vital role of NiB and Co ratio on the sintered densification, phase, microstructure, distortion, mechanical, and thermal characteristics of 90W-<em>x</em>NiB-(10-<em>x</em>)Co alloys. The sintered density of the alloys showed an upward trend with an increase in the NiB/Co ratio. The phase analysis confirmed W-containing intermetallic formation in the sintered alloys. FESEM micrographs depicted the prevalence of a third phase or W-rich phases along with W and matrix phases. The grain size of W and the grain growth rate were found to increase with an increase in the NiB/Co ratio. EPMA analysis was also carried out to get a deeper insight into the distribution of the elements in W-rich intermetallics. The highest compressive strength of ∼1672 MPa was obtained in the W alloys with a NiB/Co ratio of 5, whereas the highest tensile strength of ∼710 MPa was offered by W-alloys with NiB/Co of 2. The maximum bulk hardness of 462 ± 36 HV<sub>3</sub> was obtained in W-alloys with the NiB/Co ratio of 1. It was noticed that with an increase in the NiB/Co ratio, the shape distortion of the investigated alloys was prevented. The W-alloy with a NiB/Co ratio = 2 resulted in the lowest coefficient of thermal expansion.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"135 ","pages":"Article 107511"},"PeriodicalIF":4.6,"publicationDate":"2025-10-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369760","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

Study on the lapping performance and wear mechanism of spherical agglomerated diamond microspheres 球形凝聚金刚石微球研磨性能及磨损机理研究

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-22 DOI: 10.1016/j.ijrmhm.2025.107502

Shuaifei Kong , Quanbin Du , Yinghua Wang , Yizhe Li , Zhiyu Min , Lei Wang

引用次数: 0

Mechanical properties and cutting performance of α/β-SiAlON ceramic tools α/β-SiAlON陶瓷刀具的力学性能和切削性能

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-22 DOI: 10.1016/j.ijrmhm.2025.107509

Bei-Chen Gao , Qian-Kun Gu , Yi-Xin Wang , Run-Ping Liu , Wei-Ming Guo , Hua-Tay Lin

{"title":"Mechanical properties and cutting performance of α/β-SiAlON ceramic tools","authors":"Bei-Chen Gao , Qian-Kun Gu , Yi-Xin Wang , Run-Ping Liu , Wei-Ming Guo , Hua-Tay Lin","doi":"10.1016/j.ijrmhm.2025.107509","DOIUrl":"10.1016/j.ijrmhm.2025.107509","url":null,"abstract":"<div><div>Three types of SiAlON ceramic tool materials (α-SiAlON, β-SiAlON, and α/β-SiAlON) were fabricated using hot-press sintering, and the correlations between mechanical properties and cutting performance through the machining of Inconel 718 were systematically investigated. The results showed that the α-SiAlON ceramic tool exhibited the highest hardness, resulting in reduced flank wear. However, its lowest indentation fracture resistance and flexural strength resulted in substantial tool tip wear. The β-SiAlON ceramic tool demonstrated the lowest hardness, resulting in excessive flank wear, while its moderate indentation fracture resistance and flexural strength contributed to moderate tool tip wear. The α/β-SiAlON ceramic tool exhibited moderate hardness, leading to acceptable flank wear, and the highest indentation fracture resistance and flexural strength, resulting in minimal tool tip wear. These results demonstrate that the dual-phase α/β design enables SiAlON ceramic tools to achieve optimal comprehensive performance in superalloy cutting applications.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"134 ","pages":"Article 107509"},"PeriodicalIF":4.6,"publicationDate":"2025-10-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358571","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

Tensile properties and deformation mechanisms of Re-0.1ZrO2 at room temperature and ultra high temperatures 室温和超高温下Re-0.1ZrO2的拉伸性能及变形机理

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-20 DOI: 10.1016/j.ijrmhm.2025.107505

Wenqing Ying , Chenghao Yang , Di Dong , Fuge Chen , Ning Xiong , Tiejun Wang , Chengyu Zhang

{"title":"Tensile properties and deformation mechanisms of Re-0.1ZrO2 at room temperature and ultra high temperatures","authors":"Wenqing Ying , Chenghao Yang , Di Dong , Fuge Chen , Ning Xiong , Tiejun Wang , Chengyu Zhang","doi":"10.1016/j.ijrmhm.2025.107505","DOIUrl":"10.1016/j.ijrmhm.2025.107505","url":null,"abstract":"<div><div>Tensile properties and deformation mechanisms of Re-0.1ZrO<sub>2</sub> at room temperature and 1700–2000 °C were investigated. The microstructure and fracture morphology were observed by a scanning electron microscope, a focused ion beam-scanning electron microscope and a transmission electron microscope. The experimental results shows that both tensile strength and elongation of Re-0.1ZrO<sub>2</sub> decrease at high temperatures compared to those at room temperature. At room temperature, the Re-0.1ZrO<sub>2</sub> exhibits a mixed fracture mode of intergranular fracture and intragranular secondary plastic fracture. The deformation is accommodated by twinning and dislocation motion. Large number of {11<span><math><mover><mn>2</mn><mo>¯</mo></mover><mn>1</mn></math></span>}<<span><math><mover><mn>1</mn><mo>¯</mo></mover><mover><mn>1</mn><mo>¯</mo></mover></math></span>26 > tension twins nucleate and the activated primary dislocation slip system is pyramidal <c + a > dislocation slip. In the temperature range of 1700–2000 °C, the alloy is characteristics of intergranular fracture. The twinning is completely suppressed and the deformation of Re-0.1ZrO<sub>2</sub> is dominated by movement of dislocations, whose main slip system remains pyramidal slip, with <a > type dislocation slip activated. Meanwhile, dislocation cross-slip and climb are also activated.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"134 ","pages":"Article 107505"},"PeriodicalIF":4.6,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358491","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

Research on micro-texture and coating preparation process strategy for macro and micro properties of cemented carbide surface 硬质合金表面宏观和微观性能的微观组织和涂层制备工艺策略研究

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-20 DOI: 10.1016/j.ijrmhm.2025.107503

Pei Han , Shucai Yang , Zekang Ren

{"title":"Research on micro-texture and coating preparation process strategy for macro and micro properties of cemented carbide surface","authors":"Pei Han , Shucai Yang , Zekang Ren","doi":"10.1016/j.ijrmhm.2025.107503","DOIUrl":"10.1016/j.ijrmhm.2025.107503","url":null,"abstract":"<div><div>Surface coating and micro-texture technologies can act synergistically to enhance the performance of cutting tools. However, the strengthening mechanisms and the influence of composite processes on the surface properties of tool materials still require comprehensive investigation from a microstructural perspective. In this study, X-ray diffraction (XRD), energy-dispersive spectroscopy (EDS), Vickers microhardness testing, friction and wear test, and nanoindentation techniques are employed to elucidate the regulation mechanisms of macro- and micro-scale surface properties of cemented carbide induced by the combined preparation process of micro-texture and coating. The findings indicate that when micro-texture is performed prior to coating deposition, the samples exhibit notable advantages in surface morphology, grain refinement, coating resistance to plastic deformation, microhardness, and tribological performance. Compared with non-textured coated sample, the grain size, coating resistance to plastic deformation, coating microhardness, friction force, and wear rate improved by 24 %, 20 %, 14 %, 13 %, and 36 %, respectively. Adhesive wear is identified as the dominant wear mechanism, and it is further demonstrated that the fractal dimension of wear surface images provides a quantitative metric for characterizing the extent of surface damage.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"135 ","pages":"Article 107503"},"PeriodicalIF":4.6,"publicationDate":"2025-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369769","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

High-temperature dynamic mechanical properties of V0.5Nb0.5ZrTi refractory high entropy alloy fabricated by multi-wire arc additive manufacturing 多丝电弧增材制造V0.5Nb0.5ZrTi耐火高熵合金的高温动态力学性能

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-19 DOI: 10.1016/j.ijrmhm.2025.107506

Xinglong Di , Haozhe Xu , Chan Wang , Yujing Zhou , Siyi Peng , Xiebin Wang , Changmeng Liu , Yueling Guo

{"title":"High-temperature dynamic mechanical properties of V0.5Nb0.5ZrTi refractory high entropy alloy fabricated by multi-wire arc additive manufacturing","authors":"Xinglong Di , Haozhe Xu , Chan Wang , Yujing Zhou , Siyi Peng , Xiebin Wang , Changmeng Liu , Yueling Guo","doi":"10.1016/j.ijrmhm.2025.107506","DOIUrl":"10.1016/j.ijrmhm.2025.107506","url":null,"abstract":"<div><div>Refractory high entropy alloys (RHEAs) are a promising class of alloys with superior high-temperature mechanical properties Multi-wire arc additive manufacturing (MWAAM) offers a cost-effective and highly efficient route for fabricating RHEAs. However, research on the high-temperature and dynamic mechanical behavior of MWAAM-produced RHEAs remains unreported. In this study, a V<sub>0.5</sub>Nb<sub>0.5</sub>ZrTi RHEA was successfully fabricated using MWAAM. The microstructure, as well as the static and dynamic mechanical properties of the alloy at various temperatures, were systematically investigated. The results show that the deposited V<sub>0.5</sub>Nb<sub>0.5</sub>ZrTi RHEA is free of cracks and defects, and it exhibits a multiphase microstructure, which is beneficial for overcoming the strain softening commonly observed in BCC-structured high-entropy alloys during dynamic loading. The alloy exhibits excellent strength and plasticity under dynamic compression, with the strength improved by 2.5 %–36.6 % compared to the commonly used Ni-based superalloys and a RHEA with similar composition. Moreover, both the yield strength and plastic strain of the V<sub>0.5</sub>Nb<sub>0.5</sub>ZrTi RHEA increase with rising strain rate, showing a synergistic improvement in strength and ductility. This study provides valuable data and insights for the development and manufacturing of high-performance, low-cost, ductile V<sub>0.5</sub>Nb<sub>0.5</sub>ZrTi RHEA.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"134 ","pages":"Article 107506"},"PeriodicalIF":4.6,"publicationDate":"2025-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358573","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

Microstructure and performance study of WC-12Co cemented carbide fabricated by material extrusion additive manufacturing 材料挤压增材制造WC-12Co硬质合金的组织与性能研究

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-17 DOI: 10.1016/j.ijrmhm.2025.107504

Min-Hui Wang , Lai-Ma Luo , Yong-Qiang Qin , Xiang Zan , Yu-Cheng Wu

{"title":"Microstructure and performance study of WC-12Co cemented carbide fabricated by material extrusion additive manufacturing","authors":"Min-Hui Wang , Lai-Ma Luo , Yong-Qiang Qin , Xiang Zan , Yu-Cheng Wu","doi":"10.1016/j.ijrmhm.2025.107504","DOIUrl":"10.1016/j.ijrmhm.2025.107504","url":null,"abstract":"<div><div>This study systematically investigates the application of material extrusion additive manufacturing in the fabrication of WC-12Co cemented carbide. A binder system suitable for the MEX process was developed, and the microstructure and mechanical properties of the MEX-fabricated carbide were analyzed. WC-12Co cemented carbide with a high relative density (99.6 %), high hardness (1339 HV), and excellent fracture toughness (15.88 MPa·m<sup>1</sup>/<sup>2</sup>) was successfully fabricated using the MEX technique. The sintered microstructure revealed grain growth of WC into regular trigonal prism shapes, with a uniformly distributed Co phase forming a continuous network structure, significantly enhancing the material's crack propagation resistance. Mechanical testing showed a transverse rupture strength of 2610 MPa, indicating a favorable strength-toughness balance. Moreover, the material exhibited a low wear rate in friction and wear tests. The results demonstrate that MEX is an efficient and viable method for the additive manufacturing of high-performance, customized cemented carbide components, offering promising prospects for industrial applications and future development.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"134 ","pages":"Article 107504"},"PeriodicalIF":4.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145358572","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

Tribological performance and molten zinc corrosion behavior of WC-CoCrFeNi cemented carbides WC-CoCrFeNi硬质合金的摩擦学性能及熔锌腐蚀行为

IF 4.6 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-10-17 DOI: 10.1016/j.ijrmhm.2025.107497

Xiang Cheng , Xiaolong Xie , Silin He , Liyong Chen , Shengda Guo , Yuwei Ye , Hao Chen

{"title":"Tribological performance and molten zinc corrosion behavior of WC-CoCrFeNi cemented carbides","authors":"Xiang Cheng , Xiaolong Xie , Silin He , Liyong Chen , Shengda Guo , Yuwei Ye , Hao Chen","doi":"10.1016/j.ijrmhm.2025.107497","DOIUrl":"10.1016/j.ijrmhm.2025.107497","url":null,"abstract":"<div><div>In zinc smelting, the die casting, and hot-dip galvanizing industries, roll materials are frequently subjected to prolonged exposure to molten zinc, which significantly deteriorates their service life. Consequently, the development of novel molten zinc-corrosion-resistant materials has become an urgent requirement for the hot-dip galvanizing industry. In this work, WC-based cemented carbides were fabricated via rapid hot-pressing sintering using CoCrFeNi high-entropy alloy (HEA) as the binder phase and WC as the hard phase. The microstructure was examined and described utilizing scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and X-ray diffraction (XRD). Additionally, a comprehensive investigation was conducted to determine the impact of CoCrFeNi high-entropy alloy (HEA) binder content on the mechanical properties, wear resistance, and corrosion resistance of WC-CoCrFeNi cemented carbides. The results demonstrated that the WC-HEA cemented carbide achieved the optimal comprehensive performance when the HEA binder content reached 10 wt%: At this content, the densification effect reduced the porosity and enhanced the interfacial bonding strength, resulting in the highest hardness (1965.2 HV) and fracture toughness (10.58 MPa·m<sup>1/2</sup>). The appropriate HEA content provided a lubricating effect, leading to the lowest friction coefficient (0.267), and the improved thermal stability contributed to the best corrosion resistance to molten zinc (corrosion rate: 1.827 × 10<sup>−3</sup> mm/h).</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"135 ","pages":"Article 107497"},"PeriodicalIF":4.6,"publicationDate":"2025-10-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145369768","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