Metallographic and fractographic observations of hydrides during delayed hydride cracking in Zr-2.5% Nb alloy
Samo za registrovane korisnike
1998
Članak u časopisu (Objavljena verzija)
Metapodaci
Prikaz svih podataka o dokumentuApstrakt
Potential drop measurements, optical microscopy, and scanning electron microscopy were performed to study the mechanism of delayed hydride cracking (DHC), the relation of the fracture to the hydride morphology, and the fractography of the DHC mechanism. The material used in this study was taken from modified extrusions of the material used to manufacture Zr-2.5% Nb pressure tubes. The material was electrolytically hydrided to approximately 60 mu g/g before testing. Cracking tests were carried out at 250 degrees C with an applied K-I of 12MPa root m. The number of potential jumps was strongly correlated to the number of striations on the fracture surface, The results indicate that the DHC process occurs in these samples in an intermittent fashion. Brittle fracture is the operating fracture mechanism for the hydrides that cover most of the fracture surface, but there are some regions of ductile fracture both within the fracture and at the striations. (C) Elsevier Science Inc., 1998.
Izvor:
Materials Characterization, 1998, 40, 1, 15-25
DOI: 10.1016/S1044-5803(97)00091-0
ISSN: 1044-5803
WoS: 000074044100003
Scopus: 2-s2.0-0031653560
Kolekcije
Institucija/grupa
VinčaTY - JOUR AU - Jovanović, Milan T. AU - Shek, Gordon K. AU - Seahra, H AU - Eadie, RL PY - 1998 UR - https://vinar.vin.bg.ac.rs/handle/123456789/2149 AB - Potential drop measurements, optical microscopy, and scanning electron microscopy were performed to study the mechanism of delayed hydride cracking (DHC), the relation of the fracture to the hydride morphology, and the fractography of the DHC mechanism. The material used in this study was taken from modified extrusions of the material used to manufacture Zr-2.5% Nb pressure tubes. The material was electrolytically hydrided to approximately 60 mu g/g before testing. Cracking tests were carried out at 250 degrees C with an applied K-I of 12MPa root m. The number of potential jumps was strongly correlated to the number of striations on the fracture surface, The results indicate that the DHC process occurs in these samples in an intermittent fashion. Brittle fracture is the operating fracture mechanism for the hydrides that cover most of the fracture surface, but there are some regions of ductile fracture both within the fracture and at the striations. (C) Elsevier Science Inc., 1998. T2 - Materials Characterization T1 - Metallographic and fractographic observations of hydrides during delayed hydride cracking in Zr-2.5% Nb alloy VL - 40 IS - 1 SP - 15 EP - 25 DO - 10.1016/S1044-5803(97)00091-0 ER -
@article{ author = "Jovanović, Milan T. and Shek, Gordon K. and Seahra, H and Eadie, RL", year = "1998", abstract = "Potential drop measurements, optical microscopy, and scanning electron microscopy were performed to study the mechanism of delayed hydride cracking (DHC), the relation of the fracture to the hydride morphology, and the fractography of the DHC mechanism. The material used in this study was taken from modified extrusions of the material used to manufacture Zr-2.5% Nb pressure tubes. The material was electrolytically hydrided to approximately 60 mu g/g before testing. Cracking tests were carried out at 250 degrees C with an applied K-I of 12MPa root m. The number of potential jumps was strongly correlated to the number of striations on the fracture surface, The results indicate that the DHC process occurs in these samples in an intermittent fashion. Brittle fracture is the operating fracture mechanism for the hydrides that cover most of the fracture surface, but there are some regions of ductile fracture both within the fracture and at the striations. (C) Elsevier Science Inc., 1998.", journal = "Materials Characterization", title = "Metallographic and fractographic observations of hydrides during delayed hydride cracking in Zr-2.5% Nb alloy", volume = "40", number = "1", pages = "15-25", doi = "10.1016/S1044-5803(97)00091-0" }
Jovanović, M. T., Shek, G. K., Seahra, H.,& Eadie, R.. (1998). Metallographic and fractographic observations of hydrides during delayed hydride cracking in Zr-2.5% Nb alloy. in Materials Characterization, 40(1), 15-25. https://doi.org/10.1016/S1044-5803(97)00091-0
Jovanović MT, Shek GK, Seahra H, Eadie R. Metallographic and fractographic observations of hydrides during delayed hydride cracking in Zr-2.5% Nb alloy. in Materials Characterization. 1998;40(1):15-25. doi:10.1016/S1044-5803(97)00091-0 .
Jovanović, Milan T., Shek, Gordon K., Seahra, H, Eadie, RL, "Metallographic and fractographic observations of hydrides during delayed hydride cracking in Zr-2.5% Nb alloy" in Materials Characterization, 40, no. 1 (1998):15-25, https://doi.org/10.1016/S1044-5803(97)00091-0 . .