Metallurgical and Materials Engineering最新文献_第9页

Effect of heat treatment on hardness and wear resistance of high carbon-high chromium steel (fmu-11) 热处理对高碳高铬钢(fmu-11)硬度和耐磨性的影响

Metallurgical and Materials Engineering Pub Date : 2021-01-27 DOI: 10.30544/596

A. Darvishi, Aria Daneshmayeh, A. Salehi, M. Ahmadi, A. Soleymani

{"title":"Effect of heat treatment on hardness and wear resistance of high carbon-high chromium steel (fmu-11)","authors":"A. Darvishi, Aria Daneshmayeh, A. Salehi, M. Ahmadi, A. Soleymani","doi":"10.30544/596","DOIUrl":"https://doi.org/10.30544/596","url":null,"abstract":"In the present study, microstructure, hardness, and abrasion resistance of a heat-treated high carbon-high chromium steel (FMU-11) used in the cement mills were investigated. To investigate the best heat-treating cycle for the FMU-11 steel, three sets of samples were heat treated. The first set was tempered two times, the second set was re-hardened, and the third set was cryogenically heat treated. These samples were then compared with the conventionally heat-treated samples. The samples' microstructure was studied using an optical microscope, where traditional black and white etching, as well as color etching, were used. Scanning electron microscopy (SEM) was applied for higher magnification studies and in-depth analysis of the chemical composition. The mechanical properties were investigated by measuring the hardness and the wear resistance for the samples heat-treated in different cycles. The results showed that the cryogenic treatment and double-tempered samples had the highest hardness and wear resistance. In addition, the results showed that the re-hardening operation caused the carbides to be finely separated and evenly distributed in the steel matrix. The wear test results illustrated that the wear mechanism could be the delamination wear and the abrasive wear combined.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"57 12","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91433676","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

Comprehensive review of various corrosion behaviours on 316 stainless steel 316不锈钢各种腐蚀行为的综合评述

Metallurgical and Materials Engineering Pub Date : 2021-01-26 DOI: 10.30544/570

K. Baranidharan, S ThirumalaiKumaran, M. Uthayakumar, P. Parameswaran

引用次数: 4

Simultaneous optimization of machine and tool parameters for EDM using WC/Co P/M electrode made with micron and nano sized particles 微米级和纳米级WC/Co P/M电极电火花加工的机床参数同步优化

Metallurgical and Materials Engineering Pub Date : 2021-01-21 DOI: 10.30544/582

Nadimpalli Sarada Purnima, S. Pujari, Siva Prasad Dora

{"title":"Simultaneous optimization of machine and tool parameters for EDM using WC/Co P/M electrode made with micron and nano sized particles","authors":"Nadimpalli Sarada Purnima, S. Pujari, Siva Prasad Dora","doi":"10.30544/582","DOIUrl":"https://doi.org/10.30544/582","url":null,"abstract":"Multi-response characteristic optimization is the most desired aspect of the components produced from electric discharge machining (EDM). Obtaining the optimal combination of parameters for surface roughness (SR) and micro-hardness (MH) is always a challenging task as the machining parameters favourable to one performance measure adversely affects the other. The present paper deals with the simultaneous optimization of SR and MH of D2 alloy steel during EDM with tungsten carbide (WC)/cobalt (Co) P/M electrode by considering electrode and machine tool parameters. Experimental run order was planned with Taguchi’s orthogonal arrays (OA) and in the present investigation, it is based on L18 OA. The analysis of variance (ANOVA) performed for the grey relational grade (GRG) showed that the tool parameter “particle size” (PS) is the most influential factor (61.43%) for simultaneous improvement of performance measures. The P/M electrode made of fine particle size (i.e., at nano level) has improved the process stability and reduced the arcing and short-circuiting results in reduced surface roughness. Simultaneously, the formation of the hard intermetallic phase’s viz., Fe3C, Cr23C6, W2C, Fe6W6C, and Cr2Fe14C on the EDMed surface has increased the surface hardness. The optimal set of parameters was validated through confirmation experiments.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86742503","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

Arc Plasma Deposition of TiO2 Nanoparticles from Colloidal Solution 胶体溶液中TiO2纳米粒子的电弧等离子沉积

Metallurgical and Materials Engineering Pub Date : 2020-12-31 DOI: 10.30544/587

V. Maksimović, M. Stoiljković, V. Pavkov, J. Ciganovic, I. Cvijović-Alagić

{"title":"Arc Plasma Deposition of TiO2 Nanoparticles from Colloidal Solution","authors":"V. Maksimović, M. Stoiljković, V. Pavkov, J. Ciganovic, I. Cvijović-Alagić","doi":"10.30544/587","DOIUrl":"https://doi.org/10.30544/587","url":null,"abstract":"Surface modifications of metallic biomaterials can in great merit, improve the properties of the hard-tissue implants and in that way contribute to the success of the surgical implantation process. Coating deposition stands out as one of the many surface-modifying techniques that can be used to improve implant surface properties and, in turn, induce successful osseointegration. Deposition of the TiO2 layer on the surface of the metallic implants has a great potential to enhance not only their osseointegration ability but also their biocompatibility and corrosion resistance. In the present study, the possibility of successful deposition of the TiO2 layer on the surface of commercially pure titanium (CP-Ti), as the most commonly used metallic implant material, by spraying the colloidal nanoparticles aqueous solution in the electric discharge plasma at atmospheric pressure was investigated. To characterize the colloidal TiO2 nanoparticle solution, used for the coating deposition process, transmission electron microscopy (TEM) was utilized, while scanning electron microscopy (SEM) and optical profilometry were used to investigate the deposited surface layer morphology and quality. Estimation of the deposited film quality and texture was used to confirm that the arc plasma deposition technique can be successfully used as an advanced and easy-to-apply method for coating the metallic implant material surface with the bioactive TiO2 layer which favors the osseointegration process through the improvement of the implant surface properties. The TiO2 coating was successfully deposited using the arc plasma deposition technique and covered the entire surface of the CP-Ti substrate without any signs of coating cracking or detachment.","PeriodicalId":18466,"journal":{"name":"Metallurgical and Materials Engineering","volume":"130 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88779649","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

Characterization of carbon fibrous material from platanus achenes as platinum catalysts support 瘦果碳纤维材料作为铂催化剂载体的表征

Metallurgical and Materials Engineering Pub Date : 2020-12-31 DOI: 10.30544/588

B. Kaludjerovic, V. Jovanović, S. Stevanović, Ž. Bogdanov, S. Krstić, V. Dodevski

引用次数: 0

Effect of chemical composition on the microstructure, hardness and electrical conductivity profiles of the Bi-Ge-In alloys 化学成分对Bi-Ge-In合金显微组织、硬度和电导率的影响

Metallurgical and Materials Engineering Pub Date : 2020-12-31 DOI: 10.30544/561

A. Djordjevic, M. Premović, D. Minić, M. Kolarević, M. Tomović

引用次数: 0

Effect of process parameters on the phase transformation kinetics in copper-based alloys and composites 工艺参数对铜基合金及复合材料相变动力学的影响

Metallurgical and Materials Engineering Pub Date : 2020-11-26 DOI: 10.30544/571

M. Šimic, N. Radović, M. Gordić, J. Ružić

引用次数: 0

Mechanical and electrical properties of the Bi-Ge-Sn alloys Bi-Ge-Sn合金的力学和电学性能

Metallurgical and Materials Engineering Pub Date : 2020-11-23 DOI: 10.30544/562

M. Premović, A. Djordjevic, D. Minić, M. Tomović, B. Radičević, N. Kolarević

引用次数: 0

Friction and wear reduction by graphene nano platelets for hybrid nano Aluminium matrix composite under dry sliding conditions 干滑动条件下石墨烯纳米片对杂化纳米铝基复合材料的摩擦磨损降低作用

Metallurgical and Materials Engineering Pub Date : 2020-11-19 DOI: 10.30544/536

P. D. Srivyas, M. Charoo

引用次数: 2

An overview on potential hydrometallurgical processes for separation and recovery of manganese 锰分离与回收的潜在湿法冶金工艺综述

Metallurgical and Materials Engineering Pub Date : 2020-11-19 DOI: 10.30544/560

Dr.Sanghamitra Pradhan, Ms.Muskan Ram, Prof.Sujata Mishra

引用次数: 0