Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel

The corrosion resistance of any metallic material depends on the environment to which it is exposed. DMR-1700 steel is a material for structural applications that has been recently developed at Defence Metallurgical Research Laboratory by changing the chemistry of alloying elements. Therefore, a det...

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Main Author: Injeti Gurrappa and Guntupalli Malakondaiah
Format: Article
Language:English
Published: Taylor & Francis Group 2008-01-01
Series:Science and Technology of Advanced Materials
Subjects:
Online Access:http://www.iop.org/EJ/abstract/1468-6996/9/2/025005
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author Injeti Gurrappa and Guntupalli Malakondaiah
author_facet Injeti Gurrappa and Guntupalli Malakondaiah
author_sort Injeti Gurrappa and Guntupalli Malakondaiah
collection DOAJ
description The corrosion resistance of any metallic material depends on the environment to which it is exposed. DMR-1700 steel is a material for structural applications that has been recently developed at Defence Metallurgical Research Laboratory by changing the chemistry of alloying elements. Therefore, a detailed understanding of its corrosion characteristics under different environmental conditions is essential. In the present paper, we report the results of a systematic corrosion study that was carried out on the new steel to determine the effect of the environment on the protective nature of the oxide scale that forms on its surface under different environmental conditions. Furthermore, the oxide scale as well as the resistance to pitting and crevice corrosion were studied in various environments. The surface morphologies of the corroded steels were observed under a scanning electron microscope (SEM) to determine the nature of the corrosion. On the basis of studies by different techniques, DMR-1700 steel is recommended for the manufacture of components used in various systems in conjunction with the application of an appropriate protective coating to improve its resistivity to corrosion.
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spelling doaj.art-a475dcbd61f0493297b612a363cc54be2022-12-22T01:56:18ZengTaylor & Francis GroupScience and Technology of Advanced Materials1468-69961878-55142008-01-0192025005Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steelInjeti Gurrappa and Guntupalli MalakondaiahThe corrosion resistance of any metallic material depends on the environment to which it is exposed. DMR-1700 steel is a material for structural applications that has been recently developed at Defence Metallurgical Research Laboratory by changing the chemistry of alloying elements. Therefore, a detailed understanding of its corrosion characteristics under different environmental conditions is essential. In the present paper, we report the results of a systematic corrosion study that was carried out on the new steel to determine the effect of the environment on the protective nature of the oxide scale that forms on its surface under different environmental conditions. Furthermore, the oxide scale as well as the resistance to pitting and crevice corrosion were studied in various environments. The surface morphologies of the corroded steels were observed under a scanning electron microscope (SEM) to determine the nature of the corrosion. On the basis of studies by different techniques, DMR-1700 steel is recommended for the manufacture of components used in various systems in conjunction with the application of an appropriate protective coating to improve its resistivity to corrosion.http://www.iop.org/EJ/abstract/1468-6996/9/2/025005structural steelcorrosionprotective coatings
spellingShingle Injeti Gurrappa and Guntupalli Malakondaiah
Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel
Science and Technology of Advanced Materials
structural steel
corrosion
protective coatings
title Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel
title_full Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel
title_fullStr Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel
title_full_unstemmed Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel
title_short Effect of environment on corrosion characteristics of newly developed DMR-1700 structural steel
title_sort effect of environment on corrosion characteristics of newly developed dmr 1700 structural steel
topic structural steel
corrosion
protective coatings
url http://www.iop.org/EJ/abstract/1468-6996/9/2/025005
work_keys_str_mv AT injetigurrappaandguntupallimalakondaiah effectofenvironmentoncorrosioncharacteristicsofnewlydevelopeddmr1700structuralsteel