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http://hdl.handle.net/2080/2835
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DC Field | Value | Language |
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dc.contributor.author | Meher, P | - |
dc.contributor.author | Kiran, C | - |
dc.contributor.author | Patra, Anshuman | - |
dc.contributor.author | Saxena, R | - |
dc.contributor.author | Karak, S. K | - |
dc.date.accessioned | 2017-12-29T15:08:37Z | - |
dc.date.available | 2017-12-29T15:08:37Z | - |
dc.date.issued | 2017-12 | - |
dc.identifier.citation | International Conference on Nanotechnology: Ideas, Innovations and Initiatives-2017 (ICN : 3I-2017), IIT Roorkee, India, 6 - 8 December, 2017 | en_US |
dc.identifier.uri | http://hdl.handle.net/2080/2835 | - |
dc.description | Copyright of this document belongs to proceedings publisher. | en_US |
dc.description.abstract | The present investigation comprises the fabrication of tungsten (W) based alloys with nominal composition of W70Ni20Nb10 (alloy A), W75Ni15Nb10, (alloy B) (all in wt.%) by mechanical alloying (MA) in a planetary ball mill followed by sintering at 1500°C for 2 h in Ar atmosphere. The milled powders and the consolidated products have been investigated by X-ray diffraction (XRD), Scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). Minimum crystallite size and maximum lattice strain of 45 nm and 0.42% respectively is achieved in alloy B. Maximum sinterability, hardness of 90.5%, 4.58 GPa (at 50g) respectively is achieved in alloy B due to finer crystallite size, higher surface energy and shorter atomic diffusion distance whereas maximum compressive strength of 2.14 GPa and minimum wear rate is achieved in alloy A owing to the formation of higher fraction of hard NbNi intermetallic phase. High temperature oxidation study at 900°C for 10 h reveals that lower oxidation rate is achieved in alloy A owing to lesser weight fraction of W and higher propensity of protective NiWO4 scale formation. | en_US |
dc.subject | W based alloy | en_US |
dc.subject | Mechanical alloying Strength | en_US |
dc.subject | Oxidation | en_US |
dc.title | Effect of Ni addition on microstructure, mechanical and high temperature behavior of mechanically alloyed W-Nb | en_US |
dc.type | Presentation | en_US |
Appears in Collections: | Conference Papers |
Files in This Item:
File | Description | Size | Format | |
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2017_ICN_APatra_Effect of Ni.pdf | PPT Presentation | 2.57 MB | Adobe PDF | View/Open |
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