1994
DOI: 10.5006/1.3293482
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Sensitization Behavior of Alloy 800H as Characterized by the Electrochemical Potentiokinetic Reactivation (EPR) Technique

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Cited by 8 publications
(5 citation statements)
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“…These two peaks were al-ready observed on welded grades of the Z10 NC 30.22 and NC16Fe8 types [6,8]. These two peaks were al-ready observed on welded grades of the Z10 NC 30.22 and NC16Fe8 types [6,8].…”
Section: Super-austenitic Stainless Steel Cn-7mmentioning
confidence: 79%
“…These two peaks were al-ready observed on welded grades of the Z10 NC 30.22 and NC16Fe8 types [6,8]. These two peaks were al-ready observed on welded grades of the Z10 NC 30.22 and NC16Fe8 types [6,8].…”
Section: Super-austenitic Stainless Steel Cn-7mmentioning
confidence: 79%
“…One can notice that the composition of the electrolyte is usually constituted of sulfuric acid (H 2 SO 4 ) added with a depassivator as KSCN [13][14][15], NH 4 SCN [2,17] or HCl [14] in the case of the modified EPR method. The scan rate range is between 0.5 and 2.5 mV/s [13][14][15], and the temperature of the test is often ambient [2,13,17,23] or 30 ° C [13,15,20]. However, the high precision to detect mild degrees of sensitization, i.e., in the range from where no carbide precipitation occurs to the level where one or more grains are completely surrounded by "ditches" in the etch structure, requires (i) a specific study of the electrolyte composition, temperature, potential range, and sweep rate [2,[13][14][15][16][17] and (ii) the selectivity required to detect the sensitization ( Table 1).…”
Section: Introductionmentioning
confidence: 99%
“…TEDMON, 1973;RIGGS, 1975;ROCKEL, 1971). Riggs (1975) (EDGEMON et al, 1994;FANG et al, 1998;TURNBULL et al, 2002 A é a área superficial da amostra e X é o tamanho de grão ASTM (de acordo a norma ASTM E112). Na utilização da relação acima, assume-se que a espessura da região atacada no material sensitizado vale sempre 10 -4 cm e que esta região está uniformemente distribuída ao longo dos contornos de grão.…”
Section: Influência Da Microestruturaunclassified
“…O método DL-EPR, o qual está em fase de normalização pela ASTM (SEDRIKS, 1996;STREICHER, 1995), também tem sido utilizado com o mesmo propósito. Trabalhos procurando validar esta técnica (DL-EPR) têm sido encontrados na literatura: para aços inoxidáveis dúplex (AMADOU; BRAHAM; CHAVES, 2002;LÓPEZ et al, 1997) e para aços inoxidáveis martensíticos (ALONSO-FALLEIROS; MAGRI; FALLEIROS, 1999) além de outros aços inoxidáveis e ligas de níquel (COCKERAM, 2000;EDGEMON et al, 1994;REICHERT;STONER, 1990;TEODORO;WOLYNEC, 1998).…”
Section: Introductionunclassified
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