Corrosion behavior of alloy 316L stainless steel after exposure to supercritical water at 500 °C for 20,000 h

被引：38
|
作者：
Behnamian, Yashar [1 ]
Mostafaei, Amir [2 ]
Kohandehghan, Alireza [1 ]
Zahiri, Beniamin [3 ]
Zheng, Wenyue [4 ]
Guzonas, David [5 ]
Chmielus, Markus [2 ]
Chen, Weixing [1 ]
Luo, Jing Li [1 ]
机构：
[1] Univ Alberta, Dept Chem & Mat Engn, Edmonton, AB T6G 2V4, Canada
[2] Univ Pittsburgh, Dept Mech Engn & Mat Sci, Pittsburgh, PA 15261 USA
[3] Univ British Columbia, Clean Energy Res Ctr, 6250 Appl Sci Lane, Vancouver, BC V6T 1Z4, Canada
[4] Nat Resources Canada, Canmet MAT, Hamilton, ON L8P 0A5, Canada
[5] Atom Energy Canada Ltd, Chalk River Labs, Chalk River, ON K0J 1J0, Canada
来源：
JOURNAL OF SUPERCRITICAL FLUIDS | 2017年 / 127卷
基金：
加拿大自然科学与工程研究理事会;
关键词：
Austenitic stainless steel; High temperature corrosion; Oxidation; Supercritical water; DISPERSION-STRENGTHENED STEEL; AUSTENITIC ALLOYS; INTERNAL OXIDATION; HIGH-TEMPERATURE; CRACKING;
D O I：
10.1016/j.supflu.2017.03.022
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
Oxidation behavior of alloy 316L stainless steel static capsules were investigated by long-term exposure to the supercritical water at 500 degrees C and 25 MPa for various exposure times. It was found that the thickness and weight gain vs. exposure time followed parabolic law. Elemental and phase analyses indicated that long-term exposure to the SCW resulted in formation of scales identified as Fe3O4 (outer layer), Mn-Fe-Ni-Cr spinel (inner layer) on the substrate, and Ni-enrichment (chrome depleted region) in the alloy 316L. Oxidation phenomena and scales grown on the Alloy 316L as the result of long term exposure to the supercritical water was discussed.
引用
收藏
页码：191 / 199
页数：9
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