Corrosion Behavior of Several Alloys in Supercritical Water Oxidation Environment at 450 °C/23 MPa

被引：0
|
作者：
Wang Linlin [1 ]
Hou Kunlei [2 ]
Zha Xiangdong [2 ]
Ou Meiqiong [2 ]
Ma Yingche [2 ]
机构：
[1] Northeastern Univ, Sch Mat Sci & Engn, Shenyang 110819, Peoples R China
[2] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China
来源：
RARE METAL MATERIALS AND ENGINEERING | 2024年 / 53卷 / 01期
关键词：
nickel-based alloy; supercritical water oxidation; corrosion behavior; HIGH-TEMPERATURE OXIDATION;
D O I：
10.12442/j.issn.1002-185X.20230010
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The corrosion behavior of four typical Ni-based corrosion-resistant alloys in supercritical aqueous solution containing Na3PO4, Na2SO4, and NaCl at 450 degrees C/23 MPa was studied by XRD, SEM, etc. The results show that after corrosion for 50 h, the surface of the alloys is covered by short rod-shaped and needle-shaped products mainly consisting of NiCr2O4, Cr2O3, NiO, Ni-3(PO4)(2), CrPO4, and Na3PO4. With prolonging the time, the thickness of the corrosion layers is increased and the corrosion resistance is ranked as X-1#>X-2#>625>C-276.
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页码：204 / 214
页数：11
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