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Experimental and atomistic simulation based study of W based alloys synthesized by mechanical alloying, A. Patra, Md. Meraj, S. Pal, N. Yedla, S.K. Karak, Metallurgical and Materials Engineering Department

T
he present research work represents the synthesis of nanostructured W based alloys with the nominal compositions of W90Mo10 and W80Ni10Mo10 (all in wt.%) by mechanical alloying and followed by conventional sintering at 1500°C for 2 h in Ar atmosphere. The microstructure and evolution of phases
during milling and consolidated products are investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM) and Energy dispersive spectroscopy (EDS). Crystallite size of 38.7 nm and 40 nm and lattice strain of 0.41% and 0.33% are achieved in W90Mo10 and W80Ni10Mo10 alloy respectively at 20 h of milling. The lattice parameter of all the investigated alloys shows initial expansion at 10 h of milling and then contraction at 20 h of milling. W80Ni10Mo10 shows maximum sintered density of 94.8% as compared to W90Mo10. The hardness as well as the compressive "International Journal of Refractory Metals and Hard Materials, DOI: 10.1016/j.ijrmhm.2016.04.002" (List of Research)

NEW SPONSORED PROJECT
Empirical Investigation into Merger and Acquisition in .......
PI: Dr. N. M. Leepsa
Sponsor: ICSSR, Govt. of India
 
Large-scale molecular dynamics simulation deformation s .......
PI: Prof. Natraj Yedla
Sponsor: DST-SERB, Govt. of India
 
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