Lead and Lead Alloys

Roll, Kempton H.

doi:10.1021/ie50538a032

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1956

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“…Within the past few years it has also been established that room temperature brittle cold-worked chromium can often be made ductile by etching away the surface, either anodically in a bath consisting of 64% orthophosphoric acid, 15% sulfuric acid, balance water, or chemically in a hydrochloric acid solution (5)(6)(7). Experiments confirming this behavior have been performed here.…”

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confidence: 99%

The Fracture of Brittle Chromium by Acid Etching

Smith

1956

J. Electrochem. Soc.

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A mechanism is presented to explain the formation of transcrystalline cleavage cracks during the etching of brittle annealed chromium. The mechanism proposed is the formation of a face-centered-cubic chromium hydride on the surface which, due to its larger volume, initiates cracks in the brittle material beneath. These cracks may then propagate by a stress corrosion mechanism. Room temperature ductile material appears to be capable of taking up this volume expansion without cracks being initiated. X-ray data confirm the existence of the face-centered-cubic hydride.

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Section: ~Ntroductionmentioning

confidence: 99%

The Fracture of Brittle Chromium by Acid Etching

Smith

1956

J. Electrochem. Soc.

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Lead and Lead Alloys

Cited by 1 publication

References 2 publications

The Fracture of Brittle Chromium by Acid Etching

The Fracture of Brittle Chromium by Acid Etching

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