Effect of Hydrogen on Fatigue-Crack Growth of a Ferritic-Pearlitic Low Carbon Steel
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The effect of external high-pressure H2 gas on fatigue-crack growth behavior has been examined using a ferritic-pearlitic low carbon steel. The presence of hydrogen accelerates the crack growth rate by ≈13 times compared to the uncharged state and shifts the fracture surface morphology from ductile striations to a mixture of “flat” and “quasi-cleavage” features. The common feature found in the microstructure immediately beneath the hydrogen-induced fracture surface is enhanced plasticity in terms of refined dislocation cell structures and dense dislocation bands.
1990 ◽
Vol 13
(1)
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pp. 31-39
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2020 ◽
Vol 773
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pp. 138830
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1979 ◽
Vol 10
(4)
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pp. 475-481
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1986 ◽
Vol 94
(3)
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pp. 241-247
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1985 ◽
Vol 21
(1)
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pp. 63-74
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