Partial molar strain field of hydrogen in α-Fe

It is shown that the partial molar strain field of hydrogen in alpha -Fe has a non-spherical symmetry with epsilon sub 1 = 0.37 and epsilon sub 2 = --0.11. Apparent values of epsilon sub 1 and epsilon sub 2 decrease with increasing H concentration. The partial molar volume of H in alpha -Fe is shown...

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Veröffentlicht in:	Scripta metallurgica 1987-05, Vol.21 (5), p.613-618
Hauptverfasser:	Bai, Q-X, Chu, W-Y, Hsiao, C-M
Format:	Artikel
Sprache:	eng
Schlagworte:	Condensed matter: structure, mechanical and thermal properties Cross-disciplinary physics: materials science rheology Equations of state, phase equilibria, and phase transitions Exact sciences and technology Materials science Metals, semimetals and alloys Phase diagrams and microstructures developed by solidification and solid-solid phase transformations Physics Solubility, segregation, and mixing phase separation Specific materials
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Zusammenfassung:	It is shown that the partial molar strain field of hydrogen in alpha -Fe has a non-spherical symmetry with epsilon sub 1 = 0.37 and epsilon sub 2 = --0.11. Apparent values of epsilon sub 1 and epsilon sub 2 decrease with increasing H concentration. The partial molar volume of H in alpha -Fe is shown to be V = 2.5 cm exp 3 /mol and values of V decrease with increasing H concentration. This compares with values of V = 1.6-2.6 cm exp 3 /mol obtained assuming a spherically symmetric strain field. epsilon sub 1 , epsilon sub 2 and V are independent of the applied elastic stresses. 14 ref.--D.O.N.
ISSN:	0036-9748
DOI:	10.1016/0036-9748(87)90370-X