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   Characterization of bionanomaterial Ni60-Cr40 alloy obtained by mechanical alloying  
   
نویسنده dekhil l. ,zerniz n. ,bououdina m. ,haneche n. ,haneche e.b. ,grenèche j.m.
منبع journal of materials and environmental science - 2015 - دوره : 6 - شماره : 7 - صفحه:1858 -1864
چکیده    Ni60-cr40 powder mixtures were prepared from elemental ni and cr using a high energy ball mill (fritsh p7) under an argon atmosphere. microstructural,structural,magnetic and mechanical properties were followed by scanning electron microscopy,vibrating sample magnetometry and vickers micro-hardness measurements. morphological observations show the existence of a broad distribution of size and shape of the powder particles. after 6 h of milling,the rietveld refinement of x-ray diffraction pattern reveals the formation of disordered cr(ni) solid solution. the crystallite size refinement against the milling time is accompanied by an increase of the atomic level strain. cold compacting followed by liquid phase sintering were carried out in order to obtain a bulk sample and to estimate both porosity percentage and powders formability. due to the coexistence of different microstructural components and their interactions,multiphase alloy offers an excellent combination between high formability and hardness.
کلیدواژه Bionanomaterial; Micro-hardness; Ni-Cr alloy; SEM; Sintering; VSM; XRD
آدرس laboratoire de mise en forme des matériaux métalliques (lmf2m),département de métallurgie,faculté des sciences de l'ingéniorat,université badji mokhtar,b.p.12, Algeria, laboratoire de chimie organique,département de chimie,faculté des sciences,université badji mokhtar,b.p.12, Algeria, department of physics,college of science,university of bahrain, Bahrain, institut des molécules et des matériaux du mans,université du maine,faculté des sciences, France, laboratoire lesims,département de physique,faculté des sciences,université badji mokhtar,b p.12, Algeria, laboratoire de physique de l'état condensé,umr6087,université du maine,faculté des sciences, France
 
     
   
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