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Title: Corrosion behavior of niobium and Nb-25 wt% Ta alloy in sulfuric acid solutions

Abstract

In this paper the corrosion behavior of niobium and Nb-25 wt% Ta alloy in H{sub 2} SO{sub 4} solutions has been studied. Using mass-loss techniques, the influences of H{sub 2}SO{sub 4} concentration, temperature, and exposure time have been examined. The Nb-Ta alloy is more corrosion resistant than pure niobium. The obtained corrosion data allowed the construction of iso-corrosion curves of both materials in sulfuric acid below and above the boiling point.

Authors:
;  [1];  [2]
  1. Fundacao de Tecnologia Industrial, Centro de Materiais Refratanios, Polo Urbo, Industrial Gleba Al-6, 12600 Lorena, Sao Paulo (BR)
  2. Dept. de Quimica da Univ. Federal da Paraiba, CCEN, Cidade Univ., 58040 Joao Pessoa, Paraiba (BR)
Publication Date:
OSTI Identifier:
7238158
Resource Type:
Journal Article
Journal Name:
Corrosion (Houston); (United States)
Additional Journal Information:
Journal Volume: 47:6; Journal ID: ISSN 0010-9312
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CORROSION RESISTANT ALLOYS; CHEMICAL COMPOSITION; NIOBIUM ALLOYS; CORROSION; SULFURIC ACID; CORROSIVE EFFECTS; TANTALUM ALLOYS; TEMPERATURE EFFECTS; TIME DEPENDENCE; ALLOYS; CHEMICAL REACTIONS; HYDROGEN COMPOUNDS; INORGANIC ACIDS; 360105* - Metals & Alloys- Corrosion & Erosion

Citation Formats

Robin, A, Nunes, C A, and de Almeida, M E. Corrosion behavior of niobium and Nb-25 wt% Ta alloy in sulfuric acid solutions. United States: N. p., 1991. Web. doi:10.5006/1.3585276.
Robin, A, Nunes, C A, & de Almeida, M E. Corrosion behavior of niobium and Nb-25 wt% Ta alloy in sulfuric acid solutions. United States. https://doi.org/10.5006/1.3585276
Robin, A, Nunes, C A, and de Almeida, M E. 1991. "Corrosion behavior of niobium and Nb-25 wt% Ta alloy in sulfuric acid solutions". United States. https://doi.org/10.5006/1.3585276.
@article{osti_7238158,
title = {Corrosion behavior of niobium and Nb-25 wt% Ta alloy in sulfuric acid solutions},
author = {Robin, A and Nunes, C A and de Almeida, M E},
abstractNote = {In this paper the corrosion behavior of niobium and Nb-25 wt% Ta alloy in H{sub 2} SO{sub 4} solutions has been studied. Using mass-loss techniques, the influences of H{sub 2}SO{sub 4} concentration, temperature, and exposure time have been examined. The Nb-Ta alloy is more corrosion resistant than pure niobium. The obtained corrosion data allowed the construction of iso-corrosion curves of both materials in sulfuric acid below and above the boiling point.},
doi = {10.5006/1.3585276},
url = {https://www.osti.gov/biblio/7238158}, journal = {Corrosion (Houston); (United States)},
issn = {0010-9312},
number = ,
volume = 47:6,
place = {United States},
year = {Sat Jun 01 00:00:00 EDT 1991},
month = {Sat Jun 01 00:00:00 EDT 1991}
}