SEM photograph of Hydrogen Embrittlement Fracture
Of A Fastener

 hydrogen embrittlement fracture

Fracture surface of a capscrew that failed due to hydrogen embrittlement. The intergranular fracture and subsurface intergranular cracks are characteristic of fractures due to hydrogen embrittlement. The pitted surface was caused during cleaning to remove oxide from the fracture surface. 1000X

 

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