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Which of the following property is considered for controlling the porosity of the metal?

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in Casting-Forming-Welding II by (119k points)
Which of the following property is considered for controlling the porosity of the metal?

(a) Solid solubility

(b) Liquid solubility

(c) Gas solubility

(d) Flame solubility

I had been asked this question in class test.

I want to ask this question from Metallurgy of Weld in division Welding and Related Processes of Casting-Forming-Welding II

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Correct choice is (c) Gas solubility

The explanation: The amount of solubility of gas in liquid or solid welded metals is considered to be an essential criteria for the control of porosity of the weld. The gas reactions which occur, then regulate porosity.

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