The influence of modification by superdispersed powders on the lead-tin-base bronze structure

Ilya Vladimirovich Semenkov, N. V. Martyushev, A. I. Popelyukh, A. T. Alpeisov, Yuriy Yurievich Drozdov, Anna Petrovna Zykova

Research output: Contribution to journalConference article

Abstract

The paper presents data on the influence of additives of the pre-treated aluminium oxide powder on the structure of cast lead-tin-based bronzes. Different quantities of the modifier, based on the superdispersed aluminum oxide powder, were added to the bronze melt. The studies have shown that addition of a small amount of aluminum oxide powder (0.07... 0.25 %) allows modifying the micro structure of the obtained castings. This modification includes grain refinement, reduction of the matrix dendrites size of tin solid solution in copper, as well as formation of spherical inclusions of the low-melting phase - lead. In this case, the addition of such modifier influences weakly the morphology and the quantity of solid eutectoid inclusions based on electron compound Cu31 Sn8.

Original languageEnglish
Article number012114
JournalIOP Conference Series: Materials Science and Engineering
Volume124
Issue number1
DOIs
Publication statusPublished - 2 Jun 2016
EventInternational Conference on Mechanical Engineering, Automation and Control Systems 2015, MEACS 2015 - Tomsk, Russian Federation
Duration: 1 Dec 20154 Dec 2015

ASJC Scopus subject areas

  • Materials Science(all)
  • Engineering(all)

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