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Journal of Applied Sciences
Year: 2005  |  Volume: 5  |  Issue: 10  |  Page No.: 1728 - 1731

The Influence of Hydrogen on the Lattice Parameters of Tin Brass Heat Exchanger Tube

A.S. El-Amoush and S. Duhiesat    

Abstract: The influence of hydrogen on the lattice parameters of tin brass heat exchanger tube was examined using X-ray diffraction analysis. The introduction of hydrogen into brass lattice results in expanding of its lattice causing change in the interplanar spacing. The higher charging current density and longer charging time applied to this material, the greater the lattice distortion producing higher residual stresses. Increasing the current density or charging time in the material caused the brass lattice to continue to expand as indicated by measuring the relative volume change. It was found that the interplanar spacing and line breadth of brass peaks increased with either current density or charging time.

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