Metals and materials international

The Korean Institute of Metals and Materials (대한금속재료학회)
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Producing NiCrAl Alloy by the SHS Method for Use in Thermal Spray Powder Manufacturing

Derin, Bora;Demircan, Umut;Yucel, Onuralp

  • Published : 20090400
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Abstract

A series of Ni alloys containing 36.15 - 44.54 wt.% Cr and 2.0 - 13.50 wt.% Al was synthesized by Self-Propagating High-Temperature Synthesis (SHS) using a mixture of NiO, $Cr_2O_3$ and Al powders in order to obtain low-cost starting materials for thermal spray powder production. The experiments were carried out with the addition of an excess stoichiometric amount of Al between 0 % and 30 %. Additions of CaO and $CaF_2$ were also done to remove sulfur from the alloy and to investigate the effect on metal recovery.

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