Phase transformation and grain refinement in hydrogenated metastable austenitic steel
VM Shyvaniuk, Y Mine, SM Teus - Scripta Materialia, 2012 - Elsevier
VM Shyvaniuk, Y Mine, SM Teus
Scripta Materialia, 2012•ElsevierThe effect of hydrogen on strain-induced γ→ α′ transformation in type 304 steel and on the
microstructure of prestrained material was studied. Hydrogenation at 543K under a pressure
of 100MPa prevents the formation of α′-phase during tensile straining. Such a treatment of
pre-strained steel causes α′→ γ transformation and grain refinement. Ab initio calculations
for the α-and γ-iron demonstrate that hydrogen decreases the equilibrium temperature of
both phases. The reasons for the grain refinement and decrease in temperature of …
microstructure of prestrained material was studied. Hydrogenation at 543K under a pressure
of 100MPa prevents the formation of α′-phase during tensile straining. Such a treatment of
pre-strained steel causes α′→ γ transformation and grain refinement. Ab initio calculations
for the α-and γ-iron demonstrate that hydrogen decreases the equilibrium temperature of
both phases. The reasons for the grain refinement and decrease in temperature of …
The effect of hydrogen on strain-induced γ→α′ transformation in type 304 steel and on the microstructure of prestrained material was studied. Hydrogenation at 543K under a pressure of 100MPa prevents the formation of α′-phase during tensile straining. Such a treatment of pre-strained steel causes α′→γ transformation and grain refinement. Ab initio calculations for the α- and γ-iron demonstrate that hydrogen decreases the equilibrium temperature of both phases. The reasons for the grain refinement and decrease in temperature of martensite reversion are discussed.
Elsevier
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