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Hydrogen embrittlement
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Hydrogen embrittlement, also known as hydrogen-assisted cracking or hydrogen-induced cracking, is a reduction in the ductility of a metal due to absorbed hydrogen. Hydrogen atoms are small and can per
Hydrogen-induced cracking (HIC)[clarification needed]
Hydrogen-induced cracking (HIC)[clarification needed]
Crack in a hardened steel due to hydrogen, observed by scanning electron microscopy (SEM).
Crack in a hardened steel due to hydrogen, observed by scanning electron microscopy (SEM).
Pickling (metal)
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Pickling is a metal surface treatment used to remove impurities, such as stains, inorganic contaminants, and rust or scale from ferrous metals, copper, precious metals and aluminium alloys. A solution
Hydrogen embrittlement
…Gaseous dihydrogen is found in pressure vessels and pipelines. Electrochemical sources of hydrogen include acids (as may be encountered during pickling, etching, or cleaning), corrosion (typically due to aqueous corrosion or cathodic protection), and electroplating. Hydrogen can also be introduced…
Hard soldered silver rings placed in diluted sulfuric acid...
Hard soldered silver rings placed in diluted sulfuric acid...
... to remove oxide and flux.
... to remove oxide and flux.
A worker moves sheets of tin for pickling in a tin factory in South Wales during World War I
A worker moves sheets of tin for pickling in a tin factory in South Wales during World War I