Enhanced crevice corrosion of stainless steel 316 by degradation of Cr-containing hollandite crevice former

被引：6

作者：

Guo, Xiaolei ^{[1
]}

Lei, Penghui ^{[2
]}

Mohanty, Chandi ^{[1
]}

Yao, Tiankai ^{[2
]}

Lian, Jie ^{[2
]}

Frankel, Gerald S. ^{[1
]}

机构：

[1] Ohio State Univ, Dept Mat Sci & Engn, Columbus, OH 43210 USA

[2] Rensselaer Polytech Inst, Dept Mech Aerosp & Nucl Engn, Troy, NY 12180 USA

来源：

CORROSION SCIENCE | 2022年 / 205卷

关键词：

Crevice corrosion; Stainless steel; Hollandite; Corrosion interaction; Nuclear waste form; High level waste; GAMMA-IRRADIATION; PHOTOELECTRON; RADIATION; BEHAVIOR; IMMOBILIZATION; MOLYBDENUM; OXIDES; OXYGEN; XPS;

D O I：

10.1016/j.corsci.2022.110462

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This study explores the corrosion interactions between stainless steel 316 (SS316), a candidate nuclear waste canister material, and Cr-containing hollandite (Ba1.15Cr2.3Ti5.7O16), a model ceramic nuclear waste form. The two materials were corroded in close proximity in 0.6 M NaCl solution at 90 degrees C for 28 days. Severe crevice corrosion was observed on the stainless steel surface after the corrosion experiment, which is likely associated with the rapid accumulation of Cr3+ cations originating from both SS316 and the Cr-containing hollandite. The enhanced corrosion of SS316 by the corrosion products of hollandite is quantitatively explained using a classical crevice corrosion model.

引用

页数：15

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