Paper Title:
Corrosion Behaviour of Ultra-Fine Grain Chromium Bronze Prepared by Equal-Channel Angular Pressing in Nacl Solution
  Abstract

The corrosion resistance of Ultra-fine grain (UFG) chromium bronze, prepared by Equal-channel angular pressing (ECAP), was investigated at room temperature and atmospheric pressure by electrochemistry technique and immersion experiment. The electrochemistry experiment showed that ECAP processing don’t change the corrosion nature of chromiun bronze, the corrosion potential of UFG chromium bronze is a little more positive than that of CG chromium bronze, the differences are in the range of 10mV-20mV. Meantime, the immersion experiment showed that the UFG chromium bronze is more resistant to corrosion than its CG counterpart. The difference between UFG chromium bronze and its CG counterpart is also significant in terms of corrosion morphology. Though the structure is uniform corrosion, the microstructure is honeycomb-like morphology for CG chromium bronze and the corrosion pit is deeper. The shallower corrosion pits are displayed for UFG chromium bronze and grain drop off in local region.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
554-557
DOI
10.4028/www.scientific.net/AMR.194-196.554
Citation
Y. N. Zhang, C. Z. Xu, M. S. Zheng, J. W. Zhu, "Corrosion Behaviour of Ultra-Fine Grain Chromium Bronze Prepared by Equal-Channel Angular Pressing in Nacl Solution", Advanced Materials Research, Vols. 194-196, pp. 554-557, 2011
Online since
February 2011
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$32.00
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