Which of the following statements is false regarding Ni/Ni alloys. The Ni-Fe sys

Question

Which of the following statements is false regarding Ni/Ni alloys. The Ni-Fe system features a eutectoid temperature that is lower than the Fe-Fe_3 C eutectoid. In general, Ni exhibits properties that are similar to Fe. Ni is resistant to the formation of nitrides. Nickel super alloys feature remarkable strength and corrosion resistance up to 2100 C. As an alloying element, Nickel tends to increase the composition and temperature ranges over which FCC iron is stable (Nickel acts as an austenite stabilizer) Nickel is susceptible to corrosion when it contains Cr impurities or is exposed to S containing environments. Which of the following is true regarding gold/silver? Gold is a better conductor of heat compared to silver. Silver is a worse conductor of electricity compared to gold. Liquid gold can be purified by bubbling oxygen gas through the molten metal, thereby reacting with other metal impurities to form oxides which are easily removed. Gold is the most ductile metal because it has a low density (less mass to deform per unit volume to deform).

Explanation / Answer

Ans. 1 False statement:

In general N exhibit the properties of Fe

Ni is inheriently resistent to nitride...

Ans.2

Gold is better conductor of electricity than silver.

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