Influence of Mn-Ni alloying elements on surface film and pitting resistance of Cr-Mn austenitic stainless steels

被引：14
|
作者：
Qu, H. P. [1 ]
Chen, H. T. [1 ]
Lang, Y. P. [1 ]
机构：
[1] CISRI, Inst Special Steels, 76 Haidiannan Rd, Beijing, Peoples R China
来源：
CONSTRUCTION AND BUILDING MATERIALS | 2016年 / 125卷
关键词：
Stainless steel; XPS; Argon sputter; Passive film; Pitting potential; PASSIVE FILM; CORROSION BEHAVIOR; HIGH-TEMPERATURE; XPS; CHLORIDE; AES; INCLUSIONS; MANGANESE;
D O I：
10.1016/j.conbuildmat.2016.08.059
中图分类号：
TU [建筑科学];
学科分类号：
0813 ;
摘要：
This research focused on surface film and corrosion resistance of three commercial type 200 austenitic stainless steels including L4, L1 and LH with different Mn/Ni mass ratio in Chinese market. X-ray photoelectron spectrum (XPS) results showed that Fe, Cr and Mn oxide layer thickness and passive film thickness were reduced as Mn/Ni mass ratio increased. Mn enrichment was only found in LH passive film. Mn oxide percentage in LH passive film was also the highest. These disadvantages deteriorated pitting resistance of LH, which was proved by anodic polarization result. Mn/Ni mass ratio should not be higher than 1.7 to ensure good corrosion resistance and low raw material cost. (C) 2016 Elsevier Ltd. All rights reserved.
引用
收藏
页码：427 / 437
页数：11
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