Characteristics of oxide scale formed on ferritic stainless steels in simulated reheating atmosphere

被引：61

作者：

Cheng, Xiawei ^{[1
]}

Jiang, Zhengyi ^{[1
]}

Wei, Dongbin ^{[2
]}

Zhao, Jingwei ^{[1
]}

Monaghan, Brian J. ^{[1
]}

Longbottom, Raymond J. ^{[1
]}

Jiang, Laizhu ^{[3
]}

机构：

[1] Univ Wollongong, Sch Mech Mat & Mechatron Engn, Wollongong, NSW 2522, Australia

[2] Univ Technol Sydney, Sch Elect Mech & Mech Syst, Sydney, NSW 2007, Australia

[3] Baoshan Iron & Steel Co Ltd, Baosteel Res Inst, R&D Ctr, Shanghai 200431, Peoples R China

来源：

SURFACE & COATINGS TECHNOLOGY | 2014年 / 258卷

关键词：

Ferritic stainless steel; High temperature oxidation; Water vapour; Oxide scale; HIGH-TEMPERATURE OXIDATION; FE-CR ALLOYS; WATER-VAPOR; BREAKAWAY OXIDATION; CHROMIUM; MANGANESE; EVAPORATION; BEHAVIOR; CR2O3; INTERCONNECT;

D O I：

10.1016/j.surfcoat.2014.09.019

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The aim of this study is to optimise the stainless steel oxidation behaviours during hot rolling. The high temperature oxidation behaviours of ferritic stainless steels B443NT and B445J1M were studied over the temperature range from 1000 to 1150 degrees C in a humid atmosphere containing 18% water vapour, as measured by a thermogravimetric analyser (TGA). The results indicate that breakaway oxidation occurs at 1090 degrees C for the B443NT steel, which is 60 degrees C lower than that for the B445J1M steel. The occurrence of iron oxide nodules on the steels marks the onset of breakaway oxidation; however, the breakaway oxidation phenomenon of B445J1M is different from that of B443NT due to a compact and continuous Mn-Cr spinel which is formed on the surface of B445J1M. The oxide nodules with regenerated Cr2O3 scale underneath the Fe-Cr spinel display better adhesion without showing pores at the metal-scale interface. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：257 / 267

页数：11

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