Surface Topography: Metrology and Properties最新文献_第4页

Research on self-healing characteristic and state prediction method of the copper based powder metallurgy materials on friction interface 摩擦界面铜基粉末冶金材料的自修复特性及状态预测方法研究

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-05-09 DOI: 10.1088/2051-672x/ad44b7

Jianpeng Wu, Chengbing Yang, Wenya Shu, Yuxin Wang, Liyong Wang

{"title":"Research on self-healing characteristic and state prediction method of the copper based powder metallurgy materials on friction interface","authors":"Jianpeng Wu, Chengbing Yang, Wenya Shu, Yuxin Wang, Liyong Wang","doi":"10.1088/2051-672x/ad44b7","DOIUrl":"https://doi.org/10.1088/2051-672x/ad44b7","url":null,"abstract":"In high power density transmission systems, the friction and wear characteristic of copper based powder metallurgy materials is directly linked to working reliability. Moreover, these materials have frictional self-healing characteristic at the material interface. This paper focuses on exploring the healing mechanism of copper based powder metallurgy materials and conducts ‘damage-healing’ tests, proposing a method to characterize the self-healing characteristic. Subsequently, through comparative tests, the influence of temperature, speed, and pressure on the self-healing characteristics is analyzed. The results show that the increase in temperature reduces the furrow width and depth by 15.30% and 59.76%, respectively. Pressure has the greatest effect on surface roughness, reducing it by 67%. Meanwhile, this paper developed a PSO (Particle Swarm Optimization)-LSTM (Long Short-Term Memory) method to accurately predict the self-healing characterization parameters and self-healing time with small error (average 4.35%) and high correlation coefficient (<italic toggle=\"yes\">R</italic>\u00002) (average 0.976). This study contributes to the development of interface repair technology for friction materials.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"47 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140942442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Insight into the tribological properties of cylinder liner-piston ring under the nano BNNs/Cu composite additive lubrication 纳米 BNNs/Cu 复合添加剂润滑下气缸套-活塞环摩擦学特性的深入研究

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-05-09 DOI: 10.1088/2051-672x/ad44ba

Lifanxing Liu, Zhiwei Guo, Xiang Rao, Huabin Yin, Chenxing Sheng, Chengqing Yuan

{"title":"Insight into the tribological properties of cylinder liner-piston ring under the nano BNNs/Cu composite additive lubrication","authors":"Lifanxing Liu, Zhiwei Guo, Xiang Rao, Huabin Yin, Chenxing Sheng, Chengqing Yuan","doi":"10.1088/2051-672x/ad44ba","DOIUrl":"https://doi.org/10.1088/2051-672x/ad44ba","url":null,"abstract":"To improve the tribological properties of the cylinder liner-piston ring, a two-dimensional hexagonal boron nitride/copper composite lubricant additive was prepared and characterized in detail. The tribological properties and lubrication mechanism of nano hexagonal boron nitride composites with different concentrations were studied through the reciprocating friction test on the Rtec friction and wear tester. The results show that copper is successfully reduced and attached to the surface of h-BN nanosheets through the self-polymerization of dopamine, and the spherical structure promotes the interlayer slip of the nanosheets during the reciprocating friction process. The appropriate concentration of nano composite additives has excellent anti-friction and anti-wear properties. At 1 Hz and 100 N, the friction coefficient and wear quality of the nano composite additive with a concentration of 2 wt% were reduced by 29.07% and 76%, respectively. The surface Sq value and Sz value of the cylinder liner sample decreased by 68.06% and 74.47%. At the same time, under the condition of high speed and heavy load, the average wear depth of the cylinder liner sample is reduced by 61.3%. The nano composite material additive forms an excellent friction protective film on the wear surface of the cylinder liner, which can better enter the wear surface of the cylinder liner and produce a filling and repairing effect. The research results provide a method for the use of nano hexagonal boron nitride composite additives to inhibit the wear of cylinder liner-piston ring of Marine diesel engines.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"18 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140942446","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Wear performance of FeCuMoTiV high entropy alloy coatings by laser cladding 通过激光熔覆实现 FeCuMoTiV 高熵合金涂层的磨损性能

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-05-08 DOI: 10.1088/2051-672x/ad4403

Hui Li, Wei He, Feng Wang, Xudong Han, Xinyao Wang, Gonglin Wang, Xiaolong Zhang, Oleksandr Shcheretskyi

{"title":"Wear performance of FeCuMoTiV high entropy alloy coatings by laser cladding","authors":"Hui Li, Wei He, Feng Wang, Xudong Han, Xinyao Wang, Gonglin Wang, Xiaolong Zhang, Oleksandr Shcheretskyi","doi":"10.1088/2051-672x/ad4403","DOIUrl":"https://doi.org/10.1088/2051-672x/ad4403","url":null,"abstract":"FeCuMoTiV high-entropy alloy coatings were prepared on the surface of aluminum matrix composites using the laser cladding technique. The physical phase composition of the coating, the hardness of each physical phase, and the friction and wear behavior of the coating were studied in detail. The results show that: From the XRD and TEM analysis, the coating’s physical phases, BCC1(MoV) and BCC2(TiFe), are coherent. From the EBSD analysis, the grains of the coating have no obvious selective orientation, and the average equivalent circle diameter is 26.44 <italic toggle=\"yes\">μ</italic>m. Nanomechanical tests showed that the average hardness of the BCC1 phase in the coating was 7831.2 N mm−2, which provided the coating with excellent abrasion resistance. The average coefficient of friction of the coating showed a tendency to decrease and then increase with the increase of time, and it floated in the range of 0.3 ± 0.05. The coating forms a structure containing Fe2O3, MoO3, CuO, and TiO2 mixed oxide ‘glaze layer’ on the wear surface, which provides good lubrication. Combined with SEM analysis, the wear mechanism of the coating is a mixture of abrasive wear, oxidative wear, adhesive wear, and fatigue wear.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"32 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140940124","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Linearizing the vertical scale of an interferometric microscope and its effect on step-height measurement 干涉显微镜垂直刻度的线性化及其对台阶高度测量的影响

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-05-08 DOI: 10.1088/2051-672x/ad44bb

Thomas A Germer, T Brian Renegar, Ulf Griesmann, Johannes A Soons

{"title":"Linearizing the vertical scale of an interferometric microscope and its effect on step-height measurement","authors":"Thomas A Germer, T Brian Renegar, Ulf Griesmann, Johannes A Soons","doi":"10.1088/2051-672x/ad44bb","DOIUrl":"https://doi.org/10.1088/2051-672x/ad44bb","url":null,"abstract":"The vertical scale calibration of an interferometric microscope is important for establishing traceability of surface topography measurements to the International System of Units (SI) unit of length, the meter. Building on the calibration procedure for the amplification coefficient developed by de Groot and Beverage [<italic toggle=\"yes\">Proc. SPIE</italic>\u0000<bold>9526</bold>, 952610 (2015)], this paper describes a calibration procedure that yields the response curve for the entire vertical scan motion of a coherent scanning interferometric microscope. The method requires only a flat mirror as an artifact, a narrow band spectral filter, an aperture to reduce the effective numerical aperture, and the ability to raise and lower the microscope head so that the center of the interferogram can be varied within the scan range. The local frequency of the interferogram is determined by fitting sections of the interferogram to a sinusoidal function. The nonlinearity determined from the local frequency data can be used to estimate the uncertainty in uncorrected vertical height measurements. We describe how optical profile data can be corrected for nonlinearity due to dynamic effects in the scan motion and show that the correction improves the reproducibility of step height measurements by at least a factor of three and close to that of the repeatability.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"20 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140940222","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Dynamic response and roughness control of surface materials on TC4 titanium alloy subjected to laser shock wave planishing 激光冲击波刨削 TC4 钛合金表面材料的动态响应和粗糙度控制

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-05-08 DOI: 10.1088/2051-672x/ad44bc

Lei Wu, Fengze Dai, Mengyue Wang, Xizhang Chen

{"title":"Dynamic response and roughness control of surface materials on TC4 titanium alloy subjected to laser shock wave planishing","authors":"Lei Wu, Fengze Dai, Mengyue Wang, Xizhang Chen","doi":"10.1088/2051-672x/ad44bc","DOIUrl":"https://doi.org/10.1088/2051-672x/ad44bc","url":null,"abstract":"In this study, ABAQUS was used to predict the dynamic response of surface materials on TC4 titanium alloy during laser shock wave planishing (LSWP). The experiments were conducted to evaluate the simulations. The results indicate that during the initial stage of LSWP, the contact status between the contact foil and the micro-protrusion changes from the one-dimensional stress state to the one-dimensional strain state. This causes the high-amplitude tensile residual stress to converge at the center of the flattened micro-protrusion surface. When treating specimens with high surface roughness, the application of a thin contact foil can significantly lower the height of micro-protrusions and lift the bottom of micro-depressions. This improves the plastic flow of micro-protrusions and prevents the convergence of tensile residual stress. Using a thick contact foil can help extend the pressure pulse duration and prevent the overall surface profile subsidence when treating specimens with lower surface roughness. The outcomes of the experiment and the simulation agree rather well. Additionally, a thick contact foil can reduce the build-up of tensile residual stress by reducing the contact pressure.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"24 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-05-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140940342","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Synthesis and characterization of modified iron oxide hydrophobic corrosion-resistant pigment for aluminum alloy coating 用于铝合金涂层的改性氧化铁疏水性耐腐蚀颜料的合成与表征

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-04-25 DOI: 10.1088/2051-672x/ad3fd0

Bingkui Wang, Renhuan Luo, Zhanhua Yang, Xiaoyu Zhou, Wang Li, Jiacheng Li, Qiankun Wei, Jun Chen, Guowang Wei, Jiubing Zhang, Zhongmin Wang and Weijiang Gan

{"title":"Synthesis and characterization of modified iron oxide hydrophobic corrosion-resistant pigment for aluminum alloy coating","authors":"Bingkui Wang, Renhuan Luo, Zhanhua Yang, Xiaoyu Zhou, Wang Li, Jiacheng Li, Qiankun Wei, Jun Chen, Guowang Wei, Jiubing Zhang, Zhongmin Wang and Weijiang Gan","doi":"10.1088/2051-672x/ad3fd0","DOIUrl":"https://doi.org/10.1088/2051-672x/ad3fd0","url":null,"abstract":"A hydrophobic coating containing modified iron oxides was prepared for corrosion protection of aluminum alloy. The modified iron oxide particles were synthesized using the annealing method and the evaluation of the corrosion-resistant benefits of modified iron oxides as additive in the epoxy resin coating was conducted. The raw FeOOH phase can be transformed into the α-Fe2O3 phase by increasing the annealing temperature. The morphology, colors, and pore size of the modified iron oxide are controllably evolved via finely adjusting the annealing temperature, which is beneficial for the compatibility, dispersion, and stability with epoxy resin. Besides, modified α-Fe2O3 annealed at 700 °C exhibited elliptical morphology and good solubility in epoxy resin solvents to form a hydrophobic corrosion inhibition layer (TP700), which further improves the corrosion resistance. Findings of corrosion electrochemical measurements and salt spray test confirmed the existence of TP700 composite coating resulted in the best corrosion protective properties on aluminum alloy during the corrosion process with the minimum corrosion current of 7.75 × 10−10 A cm−2 and the maximum |Z|0.01Hz value of 1.80 × 108 Ω cm2, which both are about two orders of magnitude higher than the commercial Fe2O3. Our results suggest a new venue for preparing modified iron oxide pigment on the surface of aluminum alloy materials for enhanced anti-corrosion applications.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"28 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140803841","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Sandwich-structured nano-adhesive based on the synergistic action of two nanoparticles (SiC and MWCNTs) 基于两种纳米粒子（SiC 和 MWCNTs）协同作用的夹层结构纳米粘合剂

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-04-12 DOI: 10.1088/2051-672x/ad3a82

Umesh Marathe, Jayashree Bijwe

{"title":"Sandwich-structured nano-adhesive based on the synergistic action of two nanoparticles (SiC and MWCNTs)","authors":"Umesh Marathe, Jayashree Bijwe","doi":"10.1088/2051-672x/ad3a82","DOIUrl":"https://doi.org/10.1088/2051-672x/ad3a82","url":null,"abstract":"This study encompasses the development of sandwich-structured adhesive reporting the synergism in the functioning of two kinds of nanoparticles (NPs)-SiC (Silicon carbide) and MWCNTs (multiwalled carbon nanotubes). Two adhesives using MWCNTs and NPs of SiC in selected amounts were developed using Polyaryletherketone (PAEK) thermoplastic polymer as a base matrix. Fabricated joints using these adhesives were characterized for degglomeration and dispersion of NPs, lap shear strength (LSS), and failure modes. Based on the data on the LSS, the advantages and disadvantages of using individual NPs were analyzed, and the third adhesive was designed in a sandwich manner, where positive points of both the NPs were expected to work synergistically. The sandwich adhesive showed higher LSS than the individual ones, i.e., an 8.6% and 26% improvement to SiC-based and MWCNT-based adhesives, respectively. It was concluded that the strengthening mechanism of MWCNTs of bulk polymer in the central portion was beneficial. The two outer layers of SiC NPs in PAEK interacting with the two steel surfaces of coupons proved helpful in increasing friction and, hence, synergistically increasing the LSS of sandwich adhesive.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"100 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140617280","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Impact of incorporating FeNbC into weld flux on the abrasive wear resistance of coatings produced by SAW in a microalloyed steel 在微合金钢焊接熔剂中加入 FeNbC 对通过 SAW 生产的涂层耐磨性的影响

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-03-26 DOI: 10.1088/2051-672x/ad2ec0

Edilson N Pollnow, Frantchescole B Cardoso, Ederson B das Neves, Rodrigo B Santos, Alice G Osorio

{"title":"Impact of incorporating FeNbC into weld flux on the abrasive wear resistance of coatings produced by SAW in a microalloyed steel","authors":"Edilson N Pollnow, Frantchescole B Cardoso, Ederson B das Neves, Rodrigo B Santos, Alice G Osorio","doi":"10.1088/2051-672x/ad2ec0","DOIUrl":"https://doi.org/10.1088/2051-672x/ad2ec0","url":null,"abstract":"Owing to the global shortage of raw materials and an increase in their prices, there is a growing demand for engineering solutions to increase the lifespan and durability of equipment and components. Therefore, this study aims to combine surface engineering and welding engineering to produce a niobium-rich coating using submerged arc welding (SAW) deposition. SAW is a cost-effective technique that allows high deposition rates and technical simplicity, which can enhance mechanical properties and resistance to abrasive wear of components. This research involves the addition of a FeNbC powder alloy in percentages of 5, 10, and 15 wt% to a neutral commercial SAW flux, as an alternative to adding Nb to the microstructure of the deposited coating. The coating was characterized by optical microscopy to analyze the microstructure, such as the presence of phases; microhardness through a Vickers micro-durometer, and resistance to abrasive wear through the loss of mass using a rubber wheel-type abrasometer. The wear mechanisms were evaluated using scanning electron microscopy. The results showed that a Nb-rich coating can be deposited via SAW, and the coatings successfully increased microhardness by up to 110% and resistance to abrasive wear to values higher than the base metal used (microalloyed steel). The microstructure formed was rich in Fe2Nb and NbC, proving the formation of Nb-rich phases. Additionally, the mechanism of abrasive wear was predominantly plastic for the base metal and changed to micro-cutting and micro-plowing after the addition of up to 15% of FeNbC.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"48 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140313000","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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

Tribocorrosion studies on DLC films with silver nanoparticles for prosthesis applications 含银纳米颗粒的 DLC 薄膜在假体应用中的摩擦磨损研究

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-03-21 DOI: 10.1088/2051-672x/ad2ebe

P A Radi, L Vieira, P Leite, V J Trava-Airoldi, M Massi, D A P Reis

{"title":"Tribocorrosion studies on DLC films with silver nanoparticles for prosthesis applications","authors":"P A Radi, L Vieira, P Leite, V J Trava-Airoldi, M Massi, D A P Reis","doi":"10.1088/2051-672x/ad2ebe","DOIUrl":"https://doi.org/10.1088/2051-672x/ad2ebe","url":null,"abstract":"Metals and their alloys are very important for orthopedic applications, and the basic requirements for a successful implant are chemical stability, mechanical behavior, and biocompatibility in body fluids and tissues. For prosthesis applications, the corrosion resistance of metals is one of the major prerequisites to avoid impairment of the material properties due to degradation. The combined action of corrosion and wear on the material is called tribocorrosion and DLC (Diamond-Like Carbon) films have been extensively studied to increase prosthesis biocompatibility and to protect from corrosion. Additionally, DLC coatings can prevent the prosthesis to release toxic elements due to plastic deformation and corrosion. This paper is about tribocorrosion studies on DLC and DLC-Ag (DLC containing silver nanoparticles) on Ti-6Al-4V substrates. These films were obtained by PECVD (Plasma Enhanced Chemical Vapor Deposition) using hexane as a precursor. The tribocorrosion behavior of uncoated and coated samples was investigated in the reciprocating mode in Ringer’s lactate solution. From the polarization test results, the protective efficiency of the film was calculated. Silver nanoparticles improved the corrosion resistance of the films. The protective efficiency was 15 and 19% for DLC and DLC-Ag films, respectively.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"144 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-03-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312643","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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 microstructure evolution and surface quality of WEDM for magnetic refrigerant rare-earth gadolinium 磁性制冷剂稀土钆的线切割微结构演变和表面质量研究

IF 2.7 3区材料科学

Surface Topography: Metrology and Properties Pub Date : 2024-03-20 DOI: 10.1088/2051-672x/ad31b4

Lunye Sun, Shanliang Shi, Zhenxing Li, Kamlakar P Rajurkar, Yonggang Hou, Peng Hai, Zhaofu Chu, Xianguo Li

{"title":"Research on microstructure evolution and surface quality of WEDM for magnetic refrigerant rare-earth gadolinium","authors":"Lunye Sun, Shanliang Shi, Zhenxing Li, Kamlakar P Rajurkar, Yonggang Hou, Peng Hai, Zhaofu Chu, Xianguo Li","doi":"10.1088/2051-672x/ad31b4","DOIUrl":"https://doi.org/10.1088/2051-672x/ad31b4","url":null,"abstract":"Rare-earth gadolinium (Gd) is preferable for manufacturing regenerators of the core components of room-temperature magnetic refrigeration owing to its unique magnetocaloric and mechanical properties. However, the surface quality of the regenerator plays a crucial role in the heat transfer effect and service life of magnetocaloric systems during wire electrical discharge machining (WEDM) when fabricating rare-earth Gd array microstructure regenerators. In this study, different process parameters were used to conduct a process experiment of the WEDM of rare-earth Gd. First, the evolution of the surface microstructure and its causes were analyzed using a single-factor experiment, while a corrosion test was conducted on the samples. The analysis showed that the pulse-on time and open voltage considerably affected the surface quality of the processed samples, while the samples with better surfaces exhibited good corrosion resistance. Additionally, a Taguchi experiment was designed, and a regression analysis used to establish regression models between the process parameters (pulse-on time, pulse-off time, peak current, open voltage, and water pressure) and both surface roughness (SR) and material removal rate (MRR). The results showed that the average prediction errors of SR and MRR were only 5.34% and 5.48%, respectively.","PeriodicalId":22028,"journal":{"name":"Surface Topography: Metrology and Properties","volume":"34 1","pages":""},"PeriodicalIF":2.7,"publicationDate":"2024-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140312790","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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