Ammonium chloride salts may be whitish, greenish or _________.

Weld heat affected zone graphitization is most frequently found in the heat affected zone adjacent to welds in a narrow band, corresponding to the low temperature edge of the heat affected zone. In multi-pass welded butt joints, these zones overlap each other covering the entire cross section. Because of its appearance, this type of graphitization is called________.

Liquid metal embrittlement can occur if 300 Series SS comes in contact with molten _______.

_________ is the sudden rapid fracture under stress (residual or applied) where the material exhibits little or no evidence of ductility or plastic deformation.

With sour water corrosion, at a given pressure, the H²S concentration in the sour water _________ as temperatures ________.