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Effect of the hydrogen charging of AISI 316 stainless steel from solutions containing As{sub 2} O{sub 3}; Efeito da hidrogenacao catodica a partir de solucoes contendo As{sub 2}O{sub 3} sobre aco inoxidavel tipo AISI 316

Abstract

The hydrogen charging of AISI 316 stainless steel has turned unstable the austenitic structure which partially decomposes into two phases: {epsilon} (hexagonal close packed) and {alpha} ` (body centered cubic). A 1 N H{sub 2} SO{sub 4} solution was used as electrolyte, with varying concentrations of As{sub 2} O{sub 3} (0, 1, 5 and 100 mg/l) for a single constant applied current density (i{sub o} = 0,22 A/cm{sup 2}). It was observed that a smaller austenitic grain as well as a larger hydrogen charging time, improve the phase transformation. It was established that the order in which the transformation products of the austenite appear through hydrogen charging follows the sequence: Y {yields} Y-bar + {epsilon} {yields} Y + {epsilon} + {alpha} `, although there is still some doubt about the equivalent transformation order by plastic deformation. (author).
Authors:
Publication Date:
Dec 31, 1973
Product Type:
Thesis/Dissertation
Report Number:
INIS-BR-2952
Reference Number:
SCA: 360102; PA: AIX-24:000319; SN: 93000912696
Resource Relation:
Other Information: TH: Tese (M.Sc.).; PBD: 1973
Subject:
36 MATERIALS SCIENCE; STEEL-CR17NI12MO3; ARSENIC OXIDES; HYDROGENATION; AUSTENITE; CRYSTAL LATTICES; ELECTRIC CURRENTS; GRAIN SIZE; HYDROGEN; PHASE STUDIES; 360102; STRUCTURE AND PHASE STUDIES
OSTI ID:
10108460
Research Organizations:
Universidade Federal, Rio de Janeiro, RJ (Brazil). Coordenacao dos Programas de Pos-graduacao de Engenharia
Country of Origin:
Brazil
Language:
Portuguese
Other Identifying Numbers:
Other: ON: DE93608937; TRN: BR9230175000319
Availability:
OSTI; NTIS (US Sales Only); INIS
Submitting Site:
INIS
Size:
[79] p.
Announcement Date:
Jun 30, 2005

Citation Formats

Brito, S.D. de. Effect of the hydrogen charging of AISI 316 stainless steel from solutions containing As{sub 2} O{sub 3}; Efeito da hidrogenacao catodica a partir de solucoes contendo As{sub 2}O{sub 3} sobre aco inoxidavel tipo AISI 316. Brazil: N. p., 1973. Web.
Brito, S.D. de. Effect of the hydrogen charging of AISI 316 stainless steel from solutions containing As{sub 2} O{sub 3}; Efeito da hidrogenacao catodica a partir de solucoes contendo As{sub 2}O{sub 3} sobre aco inoxidavel tipo AISI 316. Brazil.
Brito, S.D. de. 1973. "Effect of the hydrogen charging of AISI 316 stainless steel from solutions containing As{sub 2} O{sub 3}; Efeito da hidrogenacao catodica a partir de solucoes contendo As{sub 2}O{sub 3} sobre aco inoxidavel tipo AISI 316." Brazil.
@misc{etde_10108460,
title = {Effect of the hydrogen charging of AISI 316 stainless steel from solutions containing As{sub 2} O{sub 3}; Efeito da hidrogenacao catodica a partir de solucoes contendo As{sub 2}O{sub 3} sobre aco inoxidavel tipo AISI 316}
author = {Brito, S.D. de}
abstractNote = {The hydrogen charging of AISI 316 stainless steel has turned unstable the austenitic structure which partially decomposes into two phases: {epsilon} (hexagonal close packed) and {alpha} ` (body centered cubic). A 1 N H{sub 2} SO{sub 4} solution was used as electrolyte, with varying concentrations of As{sub 2} O{sub 3} (0, 1, 5 and 100 mg/l) for a single constant applied current density (i{sub o} = 0,22 A/cm{sup 2}). It was observed that a smaller austenitic grain as well as a larger hydrogen charging time, improve the phase transformation. It was established that the order in which the transformation products of the austenite appear through hydrogen charging follows the sequence: Y {yields} Y-bar + {epsilon} {yields} Y + {epsilon} + {alpha} `, although there is still some doubt about the equivalent transformation order by plastic deformation. (author).}
place = {Brazil}
year = {1973}
month = {Dec}
}