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http://hdl.handle.net/2080/4116
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DC Field | Value | Language |
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dc.contributor.author | Khan, A R | - |
dc.contributor.author | Patra, A. | - |
dc.contributor.author | Sahoo, S K | - |
dc.contributor.author | Babu, D. Arvindha | - |
dc.contributor.author | Majumdar, Bhaskar | - |
dc.date.accessioned | 2023-12-06T11:55:20Z | - |
dc.date.available | 2023-12-06T11:55:20Z | - |
dc.date.issued | 2023-11 | - |
dc.identifier.citation | 77th Annual Technical Meeting of Indian Institute of Metals and National Metallurgist Awards (IIM-ATM 2023 & NMA), KIIT Convention Centre, Bhubaneswar, 22-24th November 2023 | en_US |
dc.identifier.uri | http://hdl.handle.net/2080/4116 | - |
dc.description | Copyright belongs to proceeding publisher | en_US |
dc.description.abstract | W79Ni10Nb5Mo5 based 1.0 wt.% Y2O3 (alloy A), TiO2 (alloy B), ZrO2 (alloy C) oxide dispersed strengthened (ODS) alloys has been synthesized by mechanical alloying with 10:1 and 5:1 ball to powder weight ratio (BPR) for 20 h. The Spark Plasma Sintering of 20 h milled powders has been carried out at 1100, 1200 °C with 65 MPa pressure and 5 min holding time at the sintering temperature. The effect of various dispersions on microstructure, density, mechanical (micro-hardness, compressive strength) and wear properties has been studied. X-ray diffraction (XRD) analysis reveals the occurrence of intermetallics (NiNb, Ni10Zr7, MoNi) which are responsible for improving the strength of the alloys. Minimum grain size for alloy A sintered at 1100°C at 10:1 BPR is .25 µm while for sample sintered at 1200°C at 10:1 BPR is 0.19 µm. Maximum texture intensity has been achieved in alloy A which contributes enhanced strengthening of the alloy. Maximum % relative sintered density of 98.58% is evaluated for alloy A with 10:1 BPR and at 1200 °C. The maximum hardness, compressive strength and %compressive strain at maximum load of 15.54 GPa, 1.98 GPa, 16.2 % respectively and enhanced wear resistance is achieved in alloy A with 10:1 BPR and 1200 °C sintering temperature. | en_US |
dc.subject | W-Ni-Nb-Mo alloys | en_US |
dc.subject | ODS | en_US |
dc.subject | Spark Plasma Sintering | en_US |
dc.subject | Hardness | en_US |
dc.subject | Compressive strength | en_US |
dc.subject | Wear | en_US |
dc.title | Development of Nano Y2O3, TiO2, ZrO2 dispersed W-Ni-Nb-Mo alloys by Mechanical | en_US |
dc.type | Presentation | en_US |
Appears in Collections: | Conference Papers |
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File | Description | Size | Format | |
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2023_ATM-IIM_ASRKhan_Development.pdf | 4.05 MB | Adobe PDF | View/Open Request a copy |
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