Journal of Materials Science

, Volume 42, Issue 15, pp 5954–5958 | Cite as

Influence of arsenic, antimony and phosphorous on the microstructure and corrosion behavior of brasses

  • R. Karpagavalli
  • R. BalasubramaniamEmail author


The effect of minor additions of As, Sb and P on phase distribution and corrosion behavior has been studied in brasses. The alloys investigated were 60Cu–39Zn–1Pb, 48.95Cu–45Zn–5Pb–1Sn–0.05As, 48.90Cu–45Zn–5Pb–1Sn–0.05As–0.05Sb and 48.85Cu–45Zn–5Pb–1Sn–0.05As–0.05Sb–0.05P. Immersion tests in 1% CuCl2 solution indicated that the addition of As improved corrosion resistance while the combined addition of As + Sb and As + Sb + P was not beneficial. The hardness increased significantly with the addition of As, Sb and P. Microstructural observations indicated an increase in β phase fraction in the As, Sb and P containing alloys. X-ray diffraction studies confirmed the formation of intermetallic compounds in As, Sb and P containing alloys. Based on the microstructural observations, the intermetallic compounds appear to be primarily precipitated in the β phase with As + Sb and As + Sb + P additions. The lower corrosion resistance of the alloys 48.90Cu–45Zn–5Pb–1Sn–0.05As–0.05Sb and 48.85Cu–45Zn–5Pb–1Sn–0.05As–0.05Sb–0.05P has been related to increase in β phase volume fraction and precipitation of intermetallic compounds in the β phase.


Corrosion Resistance Intermetallic Compound Corrosion Behavior Stress Corrosion Thickness Reduction 


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© Springer Science+Business Media, LLC 2007

Authors and Affiliations

  1. 1.Department of Materials and Metallurgical EngineeringIndian Institute of TechnologyKanpurIndia

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