Boundary of the monophasic γ-solid solution region in the ternary system W-Ni-Fe
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The solubility of tungsten in theγ-solid solution decreases by a factor of 2–2.5 (at appropriate temperatures) as the iron content increases.
The greatest change in the solubility of tungsten in theγ -solid solution with temperature occurs for alloys with an Ni ∶ Fe ratio of 50 ∶ 50 wt. %.
Alloys containing 80% Ni and 20% Fe are characterized by the highest solubility of tungsten in the (Ni, Fe) Wγ-solid solution, and this solubility varies little with temperature.
KeywordsIron Solid Solution Tungsten Ternary System Iron Content
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