Effect of Aging Treatment on Intergranular Corrosion Properties of Ultra-Low Iron 625 Alloy
Joint Authors
Zhu, Zhiyuan
Xu, Lingli
Sui, Yi
Dai, An-lun
Cai, Yuan-fei
Wang, Ze-xin
Chen, Hong-mei
Shao, Xing-ming
Liu, Wei
Source
International Journal of Corrosion
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-9, 9 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-02
Country of Publication
Egypt
No. of Pages
9
Main Subjects
Abstract EN
The microstructures evolution of precipitations for an ultra-low iron Alloy 625 subjected to long term aging treatment at 750°C was investigated using scanning electron microscope (SEM) and X-ray diffraction (XRD).
The intergranular corrosion behaviors of Alloy 625 were evaluated by using ASTM G28A.
The result shows that the precipitated phase γ′′-Ni3Nb was mainly precipitated at the grain boundaries and twin boundaries.
The number and volume fraction of γ′′ increased with the prolonging of aging time.
The transformation of γ′′ to δ-Ni3Nb occurred after aging periods of 200 h.
The corrosion resistance of Alloy 625 was significantly reduced during aging treatment.
The decrease in intergranular corrosion resistance of Alloy 625 was attributed to the dissolution of precipitated phase and chromium depleted zone.
The mass loss rate of Alloy 625 after aging treatment is related to the volume of precipitated phase and can be simulated by Johnson-Mehl-Avrami equation.
American Psychological Association (APA)
Zhu, Zhiyuan& Sui, Yi& Dai, An-lun& Cai, Yuan-fei& Xu, Lingli& Wang, Ze-xin…[et al.]. 2019. Effect of Aging Treatment on Intergranular Corrosion Properties of Ultra-Low Iron 625 Alloy. International Journal of Corrosion،Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1158515
Modern Language Association (MLA)
Zhu, Zhiyuan…[et al.]. Effect of Aging Treatment on Intergranular Corrosion Properties of Ultra-Low Iron 625 Alloy. International Journal of Corrosion No. 2019 (2019), pp.1-9.
https://search.emarefa.net/detail/BIM-1158515
American Medical Association (AMA)
Zhu, Zhiyuan& Sui, Yi& Dai, An-lun& Cai, Yuan-fei& Xu, Lingli& Wang, Ze-xin…[et al.]. Effect of Aging Treatment on Intergranular Corrosion Properties of Ultra-Low Iron 625 Alloy. International Journal of Corrosion. 2019. Vol. 2019, no. 2019, pp.1-9.
https://search.emarefa.net/detail/BIM-1158515
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1158515
