International Journal of Refractory Metals & Hard Materials最新文献_第8页

Joint performance and hierarchical behavior of WC-10Co/B318 steel dissimilar resistance welds with different V-groove depths

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-22 DOI: 10.1016/j.ijrmhm.2025.107111

Lingyu Chen , Chong Zhang , Hui Long

{"title":"Joint performance and hierarchical behavior of WC-10Co/B318 steel dissimilar resistance welds with different V-groove depths","authors":"Lingyu Chen , Chong Zhang , Hui Long","doi":"10.1016/j.ijrmhm.2025.107111","DOIUrl":"10.1016/j.ijrmhm.2025.107111","url":null,"abstract":"<div><div>Resistance welding provides unique advantages over other joining processes in combining a small portion of cemented carbide with a large part of steel for the purpose of applying carbide band saw blades and achieving the effect of cost reduction, material savings, and increased efficiency. Based on previous studies, this research examines how V-groove depth affects the quality of resistance-welded WC-10Co and B318 steel joints in order to improve the service life of carbide band saw blades. The joints' shear force, welding process, macroscopic morphology, microstructure, fracture, microhardness, and toughness are explored to reveal joint performance and hierarchical behavior. The results show that the joint with a V3 groove has a higher and more stable shear force among the three investigated V-groove depths due to the smaller interfacial reaction layer and less WC-10Co loss. High-speed photographic results reflect differences in the location and amount of heat production in the three types of joints, corresponding to the microstructure and fracture morphology. A deeper groove depth results in high utilization of Ni, less welding slag encapsulating the WC-10Co, and reduced cracks. The joint's microstructure and fracture morphology exhibit ellipsoidal and fishbone-like structures, demonstrating a hierarchical behavior between the ellipsoidal and fishbone-like structures. This hierarchical behavior is mainly attributed to the interactions among Ni, W, Co, C, and molten Fe and elemental migration, with the formation mechanism explained by the structural evolution schematic, which has never been mentioned in other studies. Accordingly, the V3 groove provides the optimal groove depth as it delivers the best joint performance by combining. This study provides experimental data and theoretical references for the actual machining of carbide band saw blades.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"129 ","pages":"Article 107111"},"PeriodicalIF":4.2,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143477814","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 of initial notch wear during turning of stainless steel with CVD Al2O3/Ti(C,N) coated cemented carbide tools

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-22 DOI: 10.1016/j.ijrmhm.2025.107116

Larissa Juliana Sirtuli , Denis Boing , Volodymyr Bushlya , Susanne Norgren

{"title":"Study of initial notch wear during turning of stainless steel with CVD Al2O3/Ti(C,N) coated cemented carbide tools","authors":"Larissa Juliana Sirtuli , Denis Boing , Volodymyr Bushlya , Susanne Norgren","doi":"10.1016/j.ijrmhm.2025.107116","DOIUrl":"10.1016/j.ijrmhm.2025.107116","url":null,"abstract":"<div><div>Notch wear often determines tool life when machining stainless steel. Chemical Vapour Deposited (CVD) Al<sub>2</sub>O<sub>3</sub>/Ti(C,N) coated cemented carbide tools are the first recommendation for turning of stainless steel. The CVD coating plays a vital role in reducing and delaying tool wear progress. Hence, it is essential to understand the interaction between the initiation of notch wear and the coating degradation. However, most publications have focused on studying the progression of notch wear rather than the initiation of notch. Thus, this work investigates the initial notch wear in two fundamentally different alumina-based CVD coatings. The first coating system is composed of κ-Al<sub>2</sub>O<sub>3</sub> multilayers separated by thin TiN layers. The second coating system is a solid layer of textured (0001) α-Al<sub>2</sub>O<sub>3</sub>. Both coatings have a Ti(C,N) underlayer. The coated WC-Co cutting tools were assessed from 0.3 to 16 m of face turning in AISI 316Ti. The results showed that the notch wear started already at 0.3 m (equal to 0.3 s) of engagement length in the multilayer κ-Al<sub>2</sub>O<sub>3</sub>-TiN/Ti(C,N) coated tool and at 1 m (1 s) in the textured α-Al<sub>2</sub>O<sub>3</sub>/Ti(C,N) coated tool. The wear marks show signs of substantial mechanical and/or thermal loads in the notch region already after the first centimetres in cut. The initial notch wear occurred as a coating brittle fracture. Adhered stainless steel on the tools suggests that adhesion contributed to initial notch wear. The results of this work promote a better understanding and problem formulation of the fundamental mechanism of notch wear formation when using CVD-coated tools in stainless steel turning.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"129 ","pages":"Article 107116"},"PeriodicalIF":4.2,"publicationDate":"2025-02-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143487790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Fabrication of wear-resistant diamond/Ni-based composite coatings via induction brazing

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-20 DOI: 10.1016/j.ijrmhm.2025.107098

Qilong Wu , Huawei Sun , Hongwei Zhao , Lei Zhang , Yujia Li , Zhipeng Sun

{"title":"Fabrication of wear-resistant diamond/Ni-based composite coatings via induction brazing","authors":"Qilong Wu , Huawei Sun , Hongwei Zhao , Lei Zhang , Yujia Li , Zhipeng Sun","doi":"10.1016/j.ijrmhm.2025.107098","DOIUrl":"10.1016/j.ijrmhm.2025.107098","url":null,"abstract":"<div><div>Recently, the preparation of diamond-metal composite coatings has garnered significant attention from researchers. This paper presents a brazing process for diamond‑nickel-based composite coatings. The effects of brazing temperature and holding time on the microstructure and mechanical properties of the coating were investigated. The results indicate that the diamond‑nickel-based composite coating is defect-free and demonstrates excellent wear resistance under optimal parameters. The composite coating primarily consists of diamond, γ-Ni, Cr<sub>2</sub>C<sub>3</sub>, and M<sub>7</sub>C<sub>3，</sub>other phases such as Ni3C, Fe<img>Ni, etc. may also be present. As brazing temperature and holding time increase, the diffusion layer between the coating and steel substrate thickens, the microstructure of the brazing alloy coarsens, and cracks eventually form. At a brazing temperature of 1050 °C and a holding time of 15 s, the average wear mass loss of the coating was just 166.3 mg, indicating excellent abrasive wear resistance.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"129 ","pages":"Article 107098"},"PeriodicalIF":4.2,"publicationDate":"2025-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463703","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

Improving Cu-network structure of W@20Cu composites by ultrasonic-assisted particles rearrangement

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-20 DOI: 10.1016/j.ijrmhm.2025.107101

Qingchuan Zou , Xin Yu , Meng Li , Xizhong An , Yuming Zhou , Chao Zhang

引用次数: 0

Investigation on microstructures of typical particles in plasma spheroidized WC-Co powder

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-20 DOI: 10.1016/j.ijrmhm.2025.107110

Jiacheng Li , Qiaoyun Shen , Zhenhua Hao , Rulong Ma , Pei Wang , Yongchun Shu , Jilin He

引用次数: 0

Hardmetals with Ru-containing multi-element binders: Composition, constitution and phase formation

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-18 DOI: 10.1016/j.ijrmhm.2025.107102

Lena Maria Dorner , Raquel De Oro Calderon , Wolf-Dieter Schubert , Ralph Useldinger

{"title":"Hardmetals with Ru-containing multi-element binders: Composition, constitution and phase formation","authors":"Lena Maria Dorner , Raquel De Oro Calderon , Wolf-Dieter Schubert , Ralph Useldinger","doi":"10.1016/j.ijrmhm.2025.107102","DOIUrl":"10.1016/j.ijrmhm.2025.107102","url":null,"abstract":"<div><div>In spite of the rather high cost of Ru, CoRu binders are commonly used by the industry for the production of cemented carbides with performance demands at high temperatures. In a recent study it was shown that the solubility of W in Co-binders is considerably increased by the addition of Ru (both at low and at high carbon contents), which can significantly affect aspects such as grain growth inhibition, hardness, corrosion resistance and high temperature strength. The present work has extended the study to further binder chemistries: Co, Ni, CoNi and CoNiCr, which have been evaluated both with and without Ru additions. The results indicate that Ru additions increase the solubility of elements like W and Cr for all binder chemistries, both at low and at high carbon contents. The solubility of W is the lowest in the Cr-containing systems (CoNiCr and CoNiCrRu), however, due to the presence of Cr, the total amount of elements in solution is the highest from all binders. The results clearly demonstrate that the WC growth behaviour is significantly affected by the chemistry of the binder system, i.e. the chemical environment of the growing WC grains, which is strongly linked with the chemical activity of carbon in the system.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"129 ","pages":"Article 107102"},"PeriodicalIF":4.2,"publicationDate":"2025-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Compressive performance and defects healing behavior of pure tungsten fabricated by LPBF coupled with subsequent hot isostatic pressing

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-17 DOI: 10.1016/j.ijrmhm.2025.107100

Jie Mao , Zichun Wu , Nan Ye , Xiaoqiang Wen , Fan Zhang , Wentan Zhu , Ziyi Gong , Jiancheng Tang

{"title":"Compressive performance and defects healing behavior of pure tungsten fabricated by LPBF coupled with subsequent hot isostatic pressing","authors":"Jie Mao , Zichun Wu , Nan Ye , Xiaoqiang Wen , Fan Zhang , Wentan Zhu , Ziyi Gong , Jiancheng Tang","doi":"10.1016/j.ijrmhm.2025.107100","DOIUrl":"10.1016/j.ijrmhm.2025.107100","url":null,"abstract":"<div><div>Additively manufactured pure tungsten parts are prone to defects such as gas pores, lack of fusions, and cracks, which significantly confines its wider application. Here, the hot isostatic pressing (HIP) treatment was employed to improve the microdefects using high temperature and high pressure conditions. The microstructure evolution and compressive performance were systematically investigated. The results revealed that the HIP treatment contributed to filling the gas pores and lack of fusions, and healing the crack to discontinuous chain-like pores. The grain size ascended with the more concentrated distribution at both views, and the texture orientation evolved towards the 〈101〉 and 〈111〉, accompanied by the weaker 〈001〉. In addition, the LAGBs penetrated the HGABs storing the strain energy required for crack propagation. The compressive performance of additively manufactured pure tungsten was significantly enhanced, with the compressive strength increasing from 944 MPa to 1263 MPa (about 33.8 %) and the compressive strain rising from 11.0 % to 16.0 % (around 45.4 %). These results aid in offering another way to understand the micro defects and heal them of pure tungsten or other refractory metals.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"129 ","pages":"Article 107100"},"PeriodicalIF":4.2,"publicationDate":"2025-02-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143453590","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, mechanical, electrochemical and tribological performances of WC-based cemented carbides with different NbC amounts

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-15 DOI: 10.1016/j.ijrmhm.2025.107099

Yuwei Ye , Baoshan Zhu , Luoyang Zheng , Zhihui Zhou , Yan Xue , Hao Chen , Zhuopeng Tan , Shufang Zhang

{"title":"Microstructure, mechanical, electrochemical and tribological performances of WC-based cemented carbides with different NbC amounts","authors":"Yuwei Ye , Baoshan Zhu , Luoyang Zheng , Zhihui Zhou , Yan Xue , Hao Chen , Zhuopeng Tan , Shufang Zhang","doi":"10.1016/j.ijrmhm.2025.107099","DOIUrl":"10.1016/j.ijrmhm.2025.107099","url":null,"abstract":"<div><div>WC-based cemented carbides with different NbC amounts (0, 1, 2, 3, 4, and 5 wt%) were prepared by the liquid phase sintering method. When the NbC amount was low, it was uniformly distributed in the cemented carbide and reduced the grain size of WC grains. With the increase of NbC amount, the inhibitory effect of WC grain was weakened, and the (Nb, W)C solid solution was gradually formed. The hardness and impedance modulus (|Z|<sub>0.01Hz</sub>) of the cemented carbide increased to 1546 ± 7 kg/mm<sup>2</sup> and 2200 ± 31 Ω cm<sup>2</sup> at 2 wt% NbC. In addition, for additions of 2 wt% NbC, the corrosion current density (i<sub>corr</sub>) was 4.849 ± 0.5 × 10<sup>−6</sup> A/cm<sup>2</sup>, the coefficient of friction (COF), 0.287 ± 0.004 and the lowest wear rate of 0.85 ± 0.03 × 10<sup>−5</sup> mm<sup>3</sup>/(N⋅m) was observed. Therefore, the WC-based cemented carbides with 2 wt% NbC additive had the best comprehensive properties.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"129 ","pages":"Article 107099"},"PeriodicalIF":4.2,"publicationDate":"2025-02-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143463761","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

Spark plasma sintering influence on microstructure and mechanical properties of Ti:Ta/carbonitride ceramic matrix composites

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-13 DOI: 10.1016/j.ijrmhm.2025.107094

José Manuel Córdoba Gallego

引用次数: 0

Effects of different post-processing temperatures on the microstructure and mechanical properties of TiC-Ni cermets fabricated by selective laser melting

IF 4.2 2区材料科学

International Journal of Refractory Metals & Hard Materials Pub Date : 2025-02-13 DOI: 10.1016/j.ijrmhm.2025.107097

Song Huang , Huachen Liu , Liangcai Du , Lichao Gong , Yunqi Xie , Qianqian Kong , Zhenhua Yao

{"title":"Effects of different post-processing temperatures on the microstructure and mechanical properties of TiC-Ni cermets fabricated by selective laser melting","authors":"Song Huang , Huachen Liu , Liangcai Du , Lichao Gong , Yunqi Xie , Qianqian Kong , Zhenhua Yao","doi":"10.1016/j.ijrmhm.2025.107097","DOIUrl":"10.1016/j.ijrmhm.2025.107097","url":null,"abstract":"<div><div>Selective laser melting (SLM) combined with post-processing is a common method for fabricating complex-shaped cermets components. This study utilized SLM-fabricated samples and employed vacuum sintering as a post-processing technique to investigate the effects of different post-processing temperatures (1350 °C, 1375 °C, 1400 °C, 1425 °C, 1450 °C) on the microstructure and mechanical properties of TiC-35 wt% Ni cermets. The results showed that using SLM printing parameters of 240 W laser power and 300 mm/s scanning speed produced well-formed samples. As the sintering temperature increased, the sintering mechanism gradually transitioned from solid-phase sintering to liquid-phase sintering. Relative density, hardness, bending strength, and fracture toughness showed a trend of first increasing and then decreasing. At 1400 °C, peak values were achieved: 97.7 % relative density, 82.7 HRA hardness, 901.8 MPa bending strength, and 8.72 MPa·m<sup>1</sup>/<sup>2</sup> fracture toughness. Beyond this temperature, excessive grain growth and an increase in the brittle Ni<sub>3</sub>Ti phase led to a decline in mechanical properties. Vacuum sintering could be a promising post-processing technique for eliminating SLM-related defects and enhancing mechanical properties.</div></div>","PeriodicalId":14216,"journal":{"name":"International Journal of Refractory Metals & Hard Materials","volume":"128 ","pages":"Article 107097"},"PeriodicalIF":4.2,"publicationDate":"2025-02-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143420934","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