Metallurgical and Materials Engineering最新文献_第4页

Effect of film thickness on the structural and tribo-mechanical properties of reactive sputtered molybdenum nitride thin films 薄膜厚度对反应溅射氮化钼薄膜结构和摩擦力学性能的影响

Metallurgical and Materials Engineering Pub Date : 2022-07-06 DOI: 10.30544/823

A. Abboudi, L. Aissani, A. Saoudi, H. Djebaili

{"title":"Effect of film thickness on the structural and tribo-mechanical properties of reactive sputtered molybdenum nitride thin films","authors":"A. Abboudi, L. Aissani, A. Saoudi, H. Djebaili","doi":"10.30544/823","DOIUrl":"https://doi.org/10.30544/823","url":null,"abstract":"The current study aims to examine the impact of nitrogen content and film thickness on the structural and tribo-mechanical characteristics of reactive sputtered MoN thin films. Molybdenum nitride thin films with thicknesses ranging from 0.2 to 1.25 m have been applied to steel and silicon substrates for this purpose, with various amounts of controlled atmosphere (Ar+N2). Then, the films are characterized using XRD (X-ray diffraction), EDX (energy dispersive X-ray analysis), SEM (scanning electron microscopy), FTIR (Fourier-transform infrared spectroscopy), and nanoindentation. The residual stress was measured using Stoney formula. Results show that high compressive residual stress of -5.7 GPa is present in the film with 0.3 μm thick film and gradually decreased with increasing film thickness. Above 1 µm of film thickness, there is no change in the density of the MoN films. Also, the coating hardness and Young’s modulus vary between 9.5 and 35 GPa, 266 and 320 GPa, respectively, depending on nitrogen content and film thickness. Finally, the frictional behavior of the MoN thin films is estimated at around 0.55, confirming the gradual oxide elimination.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"13 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-07-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86967148","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Dry sliding wear behavior and its relation to microstructure of artificially aged Al-Si-Mg/TiB2 in situ composites 人工时效Al-Si-Mg/TiB2原位复合材料干滑动磨损性能及其与显微组织的关系

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/824

N. Rathod, J. Menghani

{"title":"Dry sliding wear behavior and its relation to microstructure of artificially aged Al-Si-Mg/TiB2 in situ composites","authors":"N. Rathod, J. Menghani","doi":"10.30544/824","DOIUrl":"https://doi.org/10.30544/824","url":null,"abstract":"Mechanical stir casting is utilized to produce an artificially aged Al-Si-Mg alloy, whereas halide slat (K2TiF6 and KBF4) synthesis is utilized to produce Al-Si-Mg/TiB2 aluminum matrix composites. The dry sliding pin on disc wear test was conducted using a DUCOM/TR-20LE-PHM-200 machine to simulate an automobile application (Piston-Ring assembly). Where pistons are made of aluminum alloy (for the Pin) and rings are made of grey cast iron (for the disc material). At room temperature, a wear test was conducted by altering the ageing time (3, 6, 9, 12), sliding speed (2, 2.5 m/s), and applied load (14.71, 19.62, 24.52 N) with the disc speed (500 rpm) held constant (10 min). The results indicate that the aluminum matrix composite (AMC) wear rate is reduced by 37 percent at higher sliding speeds (2.5 m/s) and by 4 percent at lower sliding speeds (2.0 m/s) compared to the base alloy. Field emission scanning electron microscope-energy dispersive spectroscopy (FESEM-EDS) and X-ray photoelectron spectroscopy (XPS) analysis revealed that the formation of the mechanically mixed layer (MML) or oxidative layers on the worn surfaces reduces the wear rate under conditions of longer ageing time, higher sliding speed, and lower applied load. The research demonstrates that composite wear is a function of sliding velocity, aging period, and applied force. As sliding speed rose from 2 m/s to 2.5 m/s, the wear rate of composites dropped reasonably, yet composites are softer than basic alloys. It is conceivable due to the presence of a considerable amount of MML and the formation of oxidative layers between pins and their equivalents.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"11 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"76754656","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 3

Endothermic solvent extraction of copper (II) with furfuryl thioalcohol from sulfate medium 糠酰硫醇从硫酸盐介质中吸热萃取铜(II)

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/758

U. Shep, Jivan M Kondre, Pratap A Shep, B. Arbad, V. Kalalawe

引用次数: 0

Historical overview of refractory lining in the blast furnace 高炉耐火材料衬里的历史概况

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/811

T. Volkov-Husović, Sanja Martinović, M. Vlahović

引用次数: 1

Simultaneous improvement of corrosion and mechanical properties of AA 5083 aluminum alloy 同时改善了AA 5083铝合金的腐蚀性能和力学性能

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/809

Qanita Tayyaba, Adnan Qayum Butt, M. Shahzad, Tahir Ali

引用次数: 1

Sandwich composite of aluminum alloy and magnesium alloy through accumulative roll bonding technique 采用累积辊焊技术制备铝合金与镁合金的夹心复合材料

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/761

J. Aishwarya, M. Nithin Kumaar, Vaira Vignesh Ramalingam, M. Govindaraju

引用次数: 1

Effects of the tempering temperature on microstructure and mechanical properties of X70 dual phase steel 回火温度对X70双相钢组织和力学性能的影响

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/753

Zidelmel Sami, Al-Zuhairi Omar

引用次数: 1

Effect of artificial aging treatment on microstructure, mechanical properties and fracture behavior of 2017A alloy 人工时效处理对2017A合金组织、力学性能及断裂行为的影响

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/744

Nassim Aguechari, A. Boudiaf, M. Ould Ouali

{"title":"Effect of artificial aging treatment on microstructure, mechanical properties and fracture behavior of 2017A alloy","authors":"Nassim Aguechari, A. Boudiaf, M. Ould Ouali","doi":"10.30544/744","DOIUrl":"https://doi.org/10.30544/744","url":null,"abstract":"The effect of artificial aging treatment on 2017A aluminum alloy microstructure, mechanical properties, and fracture behavior was investigated. The samples were taken from the as-received alloy and aged at 170 °C for 5, 10, 15, 20, and 30 hours. An optical microscope, scanning electron microscope (SEM), X-ray diffraction (XRD), microhardness and tensile strength tests were used to characterize mechanical and microstructural properties. The microstructural analysis revealed that as the aging treatment duration is increased, the size and density of precipitates grow larger and more numerous. According to X-ray diffraction measurements, the microstructural evolution caused by aging treatments is primarily due to an increase in precipitation of the hardening phase -Al2Cu. According to the tensile test results, the yield stress increases with increasing aging duration. The fracture surface analysis of failed specimens subjected to tensile loading revealed that the aging treatment conditions had a significant impact on the morphology and mode of fracture: the mixed-mode (ductile-brittle) failure was established for intermediate aging durations (aging at 170 °C for 15 and 20 h), and the intergranular fracture was found to be more pronounced when the aging duration is prolonged due to the coalescence of fine precipitates at the grain boundary.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"61 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81475760","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Effect of copper-graphite composite electrode on material removal rate and surface roughness in MONEL 400 during electrical discharge machining 铜-石墨复合电极对电火花加工中MONEL 400材料去除率和表面粗糙度的影响

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/817

Mustafa. H. Hadi, A. Ibrahim

引用次数: 2

Wear characterization of Al 7075 alloy hybrid composites Al - 7075合金杂化复合材料的磨损特性

Metallurgical and Materials Engineering Pub Date : 2022-06-30 DOI: 10.30544/821

Harish R S, Dr. Sreenivasa Reddy M, Dr. Kumaraswamy J

{"title":"Wear characterization of Al 7075 alloy hybrid composites","authors":"Harish R S, Dr. Sreenivasa Reddy M, Dr. Kumaraswamy J","doi":"10.30544/821","DOIUrl":"https://doi.org/10.30544/821","url":null,"abstract":"Aluminium alloy hybrid composites are in high demand for advanced scientific applications due to their high strength, low weight, and enhanced tribological properties. A hybrid composite of aluminium alloy (Al7075) and aluminium oxide (Al2O3) and E-glass shot fibres was produced using a sand moulding technique in an electric resistance furnace. The objective of this research was to look at the wear characteristics of Al7075-Al2O3-E-glass hybrid composites with various Al2O3 (3-12%) and E-glass weight percentages (2-6 percent). The sliding distance (500, 1000, and 1500 m), load (10, 20, and 30N), Al2O3 (3, 6, and 9 %), and E-glass (2-6 %) are the wear characteristics that are considered. Wear testing is carried out using pin-on-disc equipment (WTE 165 model, Version-EV00) in line with the Taguchi L9 orthogonal array. Taguchi analysis was done on the collected data to find SN plots. Regression analysis was done along with ANOVA to find relationships between different factors selected. In order to reduce the wear rate of hybrid composites, the optimal wear parameters are determined. As the percentage of reinforcements increased, the rate of deterioration decreased. SEM scans revealed the attachment and displacement of unintended wear debris, as well as the uniform distribution of Al2O3/E-glass particles.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"84 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2022-06-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84280795","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8