. Typical cases of the deterioration of muntz metal (60:40 brass) by selective corrosion. . which was quenched (the sample used was quenched inwater from approximately 675° C) shows an attack of the (3 verydifferent from that ordinarily observed. The /5 crystals in thiscase are attacked most readily along certain planes, often alongtwo sets of intersecting planes within the same crystal ( a and b). The attack then proceeds from these planes ofattack until the whole crystal has been converted into the samecondition as occurs more directly in the annealed material. IV. CONDITIONS
. Typical cases of the deterioration of muntz metal (60:40 brass) by selective corrosion. . which was quenched (the sample used was quenched inwater from approximately 675° C) shows an attack of the (3 verydifferent from that ordinarily observed. The /5 crystals in thiscase are attacked most readily along certain planes, often alongtwo sets of intersecting planes within the same crystal ( a and b). The attack then proceeds from these planes ofattack until the whole crystal has been converted into the samecondition as occurs more directly in the annealed material. IV. CONDITIONS INFLUENCING DEZINCIFICATION 1. STRUCTURAL COMPOSITION Although a brass is subject to dezincification, the attack is notnearly so rapid as when both a and jS constituents are of the samples of Muntz-metal sheathing, which treated (see below) previous to subjecting them to conditionsfavorable for corrosion, were heated strongly enough so that zinc 6 Second Report of Corrosion Committee, Jour. Inst. Metals; 1913. i8 Technologic Papers of the Bureau of Standards. a
Size: 1834px × 1363px
Photo credit: © Reading Room 2020 / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1910, bookidtypicalcasesof1917103rawd
