EFFECTS OF ALLOYING ELEMENTS ON NACL-INDUCED HOT CORROSION OF STAINLESS-STEELS

被引：61

作者：

HIRAMATSU, N

UEMATSU, Y

TANAKA, T

KINUGASA, M

机构：

[1] Nisshin Steel Co Shunan R&D Lab, Japan

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 1989年 / 120卷 / 1 -2 pt 1期

关键词：

Corrosion--High Temperature Effects - Iron and Steel Metallography--Microstructures - Salts--Fused - Sodium Chloride - X-ray Analysis;

D O I：

10.1016/0921-5093(89)90757-0

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Various stainless steels were examined to investigate the effects of alloying elements on NaCl-induced hot corrosion properties at temperatures below its melting point. The corrosion rate increases with increasing temperature. Austenitic stainless steels exhibit better hot corrosion resistance than ferritic stainless steels. Aluminum is effective in improving the hot corrosion resistance of ferritic stainless steel. Silicon improves the hot corrosion resistance of austenitic stainless steel, and nickel is also effective. Corrosion is increased when Cr2O3 reacts with NaCl to form Na2CrO4 instead of a protective scale. Austenitic stainless steel with high silicon content forms SiO2 which is not liable to reat with NaCl.

引用

页码：319 / 328

页数：10

共 15 条

[1]

Barin I., 2013, THERMOCHEMICAL PROPE

[2]

Beltran A.M., 1972, SUPERALLOYS, P317

[3] FORMATION AND REACTIVITY THERMODYNAMICS OF SODIUM SULFATE WITH GAS TURBINE ALLOYS [J].

DECRESCE.MA ;

BORNSTEI.NS .

CORROSION, 1968, 24 (05) :127-&

[4]

FUKASE Y, 1977, GAKUSHIN 123 KENKYU, V18, P307

[5]

HIRAMATSU N, 1987, TETSU TO HAGANE, V73, pS1246

[6]

HOSSAIN MK, 1978, C HIGH TEMPERATURE A, P239

[7]

IIZUMI S, 1976, SUPERALLOYS METLLURG, P159

[8]

JACKSON JH, 1954, T AM SOC METAL, V46, P157

[9]

NEMOTO R, 1982, BOUSYOKUGIYUTSU, V31, P597

[10]

Perry J.H., 1963, CHEM ENG HDB, V3rd edition

← 1 2 →