Nickel-chromium alloys intergranular attack susceptibility detection

Recommended practice for applying statistics to analysis of corrosion data Practice for operating light- and water-exposure apparatus (carbon-arc Type) for exposure of nonmetallic materials Method for detecting susceptibility to intergranular attack in wrought nickel-rich, chromium-bearing alloys... 

ASTM G28-85 (1985) Standard Test Methods of Detecting Susceptibility to Intergranular Attack in Wrought, Nickel-Rich, Chromium-Bearing Alloys. 

In 1974, the ferric sulfate test was applied by Brown [SI] to other nickel-rich, chromium-bearing alloys and found to be applicable for detecting susceptibility to intergranular attack in alloys G, 20 Cb-3, 600, 625, 800, and 825 (Table 1). All of these alloys have been incorporated in ASTM G 28, Practice A (Table 7). 

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