title   
  

Production of Mo2NiB2 based hard alloys by self-propagating high-temperature synthesis

Moghaddam, Sevinch Rahimi and Derin, Bora and Yücel, Onuralp and Sönmez, M. Şeref and Sezen, Meltem and Bakan, Feray and Sanin, Vladimir N. and Andreev, Dimitriy E. (2019) Production of Mo2NiB2 based hard alloys by self-propagating high-temperature synthesis. High Temperature Materials and Processes, 38 . pp. 683-691. ISSN 0334-6455 (Print) 2191-0324 (Online)

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Official URL: http://dx.doi.org/10.1515/htmp-2019-0020

Abstract

Mo-Ni-B-Al as-cast alloys containing 35.5-58.7 wt% Mo, 23.0-57.6 wt% Ni, 3.3-5.2 wt% B, and 2.2-13.5 wt% Al were synthesized by Self-Propagating High-Temperature Synthesis (SHS) using a mixture of MoO3, NiO, B2O3 and Al powders in order to obtain low-cost Mo2 NiB2 containing hard materials. The first series of experiments were performed using 1.05 times the stoichiometric amount of Al. In the second series of experiments, FactSage thermochemical modeling software was used to minimize Al increasing the Mo2NiB2 formation in the as-cast alloys. The products were characterized by using atomic absorption spectrometry (AAS), X-ray diffraction (XRD), scanning electron microscopy (SEM) and micro-hardness techniques.

Item Type:Article
Uncontrolled Keywords:Hard materials; Mo2NiB2; SHS; XRD; SEM
Subjects:Q Science > QD Chemistry > QD146-197 Inorganic chemistry
T Technology > T Technology (General) > T174.7 Nanotechnology
ID Code:40461
Deposited By:Meltem Sezen
Deposited On:20 Sep 2020 12:58
Last Modified:20 Sep 2020 12:58

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