90 tungsten molybdenum nickel iron alloy composition:
Tungsten (W) - 90%: as a matrix, providing high density, high melting point and hardness.
Molybdenum (Mo) - 4%: enhances high temperature strength, wear resistance and corrosion resistance.
Nickel (Ni) - 4%: as a bonding phase, improves ductility and machinability.
Iron (Fe) - 2%: further improves strength and gives the alloy a certain magnetic property.

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