Corrosion Behavior of Model Zirconium Alloys in Deaerated Supercritical Water at 500°C

CORROSION ◽  
2007 ◽  
Vol 63 (6) ◽  
pp. 577-590 ◽  
Author(s):  
Q. Peng ◽  
E. Gartner ◽  
J. T. Busby ◽  
A. T. Motta ◽  
G. S. Was
Keyword(s):  
Corrosion Behavior ◽  
Supercritical Water ◽  
Zirconium Alloys

scholarly journals Corrosion behavior of ferritic ODS steel prepared by adding YH2 nanoparticles in supercritical water at 600 °C

2018 ◽  
Vol 28 (4) ◽  
pp. 505-509 ◽  
Author(s):  
Zhonglian Bai ◽  
Linbo Wang ◽  
Chenxi Wang ◽  
Wenhua Gao ◽  
Lefu Zhang ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Supercritical Water ◽  
Ods Steel

scholarly journals Estimation of Corrosion Behavior for Ni Base Alloys and Iron Base Alloys under Supercritical Water Environment

2004 ◽  
Vol 53 (6) ◽  
pp. 322-328 ◽  
Author(s):  
Takashi Nishita ◽  
Motohiro Sakaihara ◽  
Ryutaro Fujisawa ◽  
Yutaka Watanabe ◽  
Yoshiaki Kurata
Keyword(s):  
Corrosion Behavior ◽  
Supercritical Water ◽  
Water Environment ◽  
Iron Base

Effect of Bi Addition on the Corrosion Behavior of Zirconium Alloys

2013 ◽  
Author(s):  
M. Y. Yao ◽  
B. X. Zhou ◽  
Q. Li ◽  
W. P. Zhang ◽  
L. Zhu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Corrosion Resistance ◽  
Corrosion Behavior ◽  
Mass Fraction ◽  
Zirconium Alloys ◽  
Deionized Water ◽  
Second Phase ◽  
Micro Structure ◽  
Second Phase Particles ◽  
Structure Observation

In order to investigate systematically the effect of Bi addition on the corrosion resistance of zirconium alloys, different zirconium-based alloys, including Zr-4 (Zr-1.5Sn-0.2Fe-0.1Cr), S5 (Zr-0.8Sn-0.35Nb-0.4Fe-0.1Cr), T5 (Zr-0.7Sn-1.0Nb-0.3Fe-0.1Cr) and Zr-1Nb, were adopted to prepare the zirconium alloys containing Bi of 0∼0.5% in mass fraction. These alloys were denoted as Zr-4+xBi, S5+xBi, T5+xBi and Zr-1Nb+xBi, respectively. The corrosion behavior of these specimens was investigated by autoclave testing in lithiated water with 0.01 M LiOH or deionized water at 360°C/18.6 MPa and in superheated steam at 400 °C/10.3 MPa. The micro structure of the alloys was examined by TEM and the second phase particles (SPPs) were analyzed by EDS. Micro structure observation shows that the addition of Bi promotes the precipitation of Sn as second phase particles (SPPs) because Sn is in solid solution in α-Zr matrix in Zr-4, S5 and T5 alloys. The concentration of Bi dissolved in α-Zr matrix increase with the increase of Nb in the alloys, and the excess Bi precipitates as Bi-containing SPPs. The corrosion results show that the effect of Bi addition on the corrosion behavior of different zirconium-based alloys is very complicated, depending on their compositions and corrosion conditions. In the case of higher Bi concentration in α-Zr, the zirconium alloys exhibit better corrosion resistance. However, in the case of precipitation of Bi-containing SPPs, the corrosion resistance gets worse. This indicates that the solid solution of Bi in α-Zr matrix can improve the corrosion resistance, while the precipitation of the Bi-containing SPPs is harmful to the corrosion resistance.

Corrosion behavior of a 304-oxide dispersion strengthened austenitic stainless steel in supercritical water

2015 ◽  
Vol 67 (3) ◽  
pp. 264-270 ◽  
Author(s):  
S. F. Li ◽  
Z. J. Zhou ◽  
L. F. Zhang ◽  
L. W. Zhang ◽  
H. L. Hu ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Austenitic Stainless Steel ◽  
Corrosion Behavior ◽  
Supercritical Water ◽  
Oxide Dispersion Strengthened ◽  
Oxide Dispersion

General Corrosion of Chromium-Coated Zirconium- and Titanium-Based Alloys in Supercritical Water at 500 °C

2020 ◽  
Vol 6 (3) ◽  
Author(s):  
K. Khumsa-Ang ◽  
M. Edwards ◽  
S. Rousseau
Keyword(s):  
Supercritical Water ◽  
Fuel Cycle ◽  
Neutron Cross Section ◽  
Zirconium Alloys ◽  
Oxide Thickness ◽  
General Corrosion ◽  
Coating Materials ◽  
Grade 5 ◽  
Oxide Phases ◽  
Enriched Uranium

Abstract The 300 MWel small Canadian supercritical water-cooled reactor (SCWR), which is a scaled-down version of the original 1200 MWel concept, has a smaller core, uses low enriched uranium fuel instead of a plutonium–thorium fuel, and features a lower (maximum) cladding temperature of 500 °C. The lower cladding temperature may permit the use of different alloys, including zirconium alloys, which had been ruled out as candidates for the Canadian SCWR, whose cladding temperature may reach 850 °C. The potential to use zirconium alloys is exciting because they have a low neutron cross section, which in turn means that fewer neutrons are lost, and the fuel can be used more efficiently. One advantage, for example,, is that the fuel cycle can be lengthened. In this paper, we report on the results of corrosion experiments used to screen zirconium- and titanium-based alloys as well as corrosion-resistant coating materials such as Cr and Al as potential candidates for fuel cladding in the small Canadian SCWR. These experiments were conducted in a refreshed autoclave in deaerated supercritical water at 500 °C and 23.5 MPa. After exposure, the weight gain was measured, and the oxide thickness and the oxide phases were examined. Of all materials, the coated and uncoated Ti-grade 2 and Ti-grade 5 alloys met our screening qualification criteria, however, Al/Cr-coated zirconium coupons showed notable improvement and will be explored further in future testing.

Effects of Si, Mn on the corrosion behavior of ferritic–martensitic steels in supercritical water (SCW) environments

2020 ◽  
Vol 166 ◽  
pp. 108432 ◽  
Author(s):  
Ziqiang Dong ◽  
Ming Li ◽  
Yashar Behnamian ◽  
Jing-Li Luo ◽  
Weixing Chen ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Supercritical Water ◽  
Martensitic Steels

Effect of salt deposit on corrosion behavior of Ni-based alloys and stainless steels in supercritical water

2019 ◽  
Vol 152 ◽  
pp. 104570 ◽  
Author(s):  
Jianqiao Yang ◽  
Shuzhong Wang ◽  
Yanhui Li ◽  
Xingying Tang ◽  
Yuzhen Wang ◽  
...  
Keyword(s):  
Corrosion Behavior ◽  
Supercritical Water ◽  
Stainless Steels ◽  
Salt Deposit

scholarly journals Corrosion Behavior of T91 and Type AISI 403 Stainless Steel in Supercritical Water

2012 ◽  
Vol 1 ◽  
pp. 543-549 ◽  
Author(s):  
A.M. Olmedo ◽  
M.G. Alvarez ◽  
G. Domínguez ◽  
R. Bordoni
Keyword(s):  
Stainless Steel ◽  
Corrosion Behavior ◽  
Supercritical Water ◽  
Type Aisi
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