THE EFFECT OF CHROMIUM CONTENT AND PARAMETERS OF PRESSING AND SINTERING ON PROPERTIES OF Cu-Cr POWDER COMPOSITION
Adkham AlikulovTashkent State Technical University, Tashkent, UzbekistanBegali BektemirovTashkent State Technical University, Tashkent, UzbekistanJakhongir BegatovShukhrat MadaliyevMakhmuda YakubovaAgbalyan AgbalyanS VasilyanG SarksyanA BoyadjyanSDenis AksenovAsfandiyarov& RashidGeorgy RaabElvira FakhretdinovaMaria ShishkunovaC WatanabeR MonzenK TazakiN KumarA BhartiM DixitI LahiriS BhargavaAlikulovB BektemirovTashkent State Technical University, Tashkent, UzbekistanShF NorkhudjaevZ MirzarakhimovaVi JnKak ubobel MilanS DobatkinJ GubiczaD ShanginaN BochvarN TabachkovaAdham AlikulovTashkent State Technical University, Tashkent, UzbekistanFaizullah NorkhudjayevShohruh TlovoldiyevS AgbalyanG VasilyanS BoyadjyanA SarkisyanC NicolicescuI tefanH VictorS XiuR YangJ XueJ WangZi-Chen ZhangRi-Chu WangChao-Qun PengFeng YanXiao-Feng WangW XiangZhi-Yong CaiYa-Ke RenXue-Qian LZu-Ming LiuBing TingLei QuanLXiao-Bo JiWen-Tao DengYong-Kang AiH ZengH SuiS WuJ LiuH WangJ Zha NgBX LiM ZhangG ZhangS WeiQ WangW LouJ LiangL ChenL XuY ZhouTemel VarolOnur GlerBerk SerhatcanHamza AkayolakLiyuan ShanLi YangYaping WangK AndersonJ Groza
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Previous studies have shown that various additives can greatly improve the properties of copper based electrodes. In this paper, the influence of Cr content changes and different pressing and sintering process parameters on mechanical and physical properties was investigated. The results showed that 2 vol.% Cu-Cr powder composite alloys prepared by pressing pressure 450 MPa and sintering temperature of 1100 C had the optimal mechanical and physical properties, and its density, porosity, hardness and tensile strength were 8,35 g/cm 3 , 2%, 124 HB and 264 MPa, respectively. In addition, the hardness was increased by 5-7% compared with that of pure copper prepared by conventional casting method.
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