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File:Intergranular Crack SEM Micrograph.jpg

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Intergranular_Crack_SEM_Micrograph.jpg (390 × 304 pixels, file size: 68 KB, MIME type: image/jpeg)

Summary

Description
English: Hydrogen embrittlement of medium carbon heat treated (hardened and tempered) steels often, but not always, results in unexpected intergranular cracks. This is because hydrogen tends to accumulate in grain boundaries if it can't find its way (by diffusion) to more comfortable positions in the microstructure of the material. The presence of the hydrogen in the grain boundaries may weaken the grain boundaries. High hardness or residual stresses increase the chances of hydrogen embrittlement in steels.
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Source Own work
Author KassJuanebe

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Captions

Intergranular cracking, usually visible in commercial steels only with the help of a microscope, often, but not always,indicates weakening of the grain boundaries compared to the optimized condition.

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27 January 2021

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current17:59, 27 January 2021Thumbnail for version as of 17:59, 27 January 2021390 × 304 (68 KB)KassJuanebeUploaded own work with UploadWizard

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