The effect of phosphorus on the structure and strength of Cu−Ni alloys
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The addition of phosphorus in quantities of 0.5–1.5% in Cu-15% Ni causes an increase in its ultimate failure strength, hardness, and a lowering of the melting temperature by 5–30°C.
The best combination of strength (σu = 400 N/mm2) and hardness (HRB 71) with preservation of a relatively low melting temperature (1120°C) is obtained in an alloy with Cu-15% Ni-1.5% P.
The high mechanical properties in combination with low melting temperature of Cu-15% Ni (0.5–2% P) alloys allows one to recommend them as impregnating materials for fabricating diamond rock-cutting tools and parts used in construction which are made from powdered materials.
KeywordsMechanical Property Phosphorus Melting Temperature Good Combination Powdered Material
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