Investigation of controllable parameters of mechanical treatment on aluminum-based composite in marine application

Hao Jiang, Qing Wang, Jian Lu, Li Min Zhou

Research output: Chapter in book / Conference proceedingConference article published in proceeding or bookAcademic researchpeer-review


Surface Mechanical Attrition Treatment (SMAT) process, as one of the typical severe plastic deformation technologies, can be utilized to generate layup structure with finer size of grains and large residual stresses at the near treated surface area on the alloys. Such technology not only improves the mechanical behaviors but also keeps neatness of alloys without inducing extra compositions. In this paper, four major controllable parameters of SMAT process are investigated to demonstrate their influence on ball-impacting intensity of the treatment, which the improvement of mechanical behaviors are greatly dependent on. The high speed camera is employed to capture the motion of the balls and measure the impact velocities by counting the number of frames. The compared results indicate that the amount of balls not only varies the average velocities during SMAT process, but also offsets the effect of distance between treated surface and source of balls. In addition, the influence of ball sizes, the mentioned distance and power of excitation exhibits apparently on intensity of SMAT process when limited amount of balls are used.
Original languageEnglish
Title of host publicationAdvanced Composites for Marine Engineering
PublisherTrans Tech Publications Ltd
Number of pages8
ISBN (Print)9783038354062
Publication statusPublished - 1 Jan 2015
Event1st International Conference on Advanced Composites for Marine Engineering, ICACME 2013 - Beijing, China
Duration: 10 Sep 201312 Sep 2013

Publication series

NameMaterials Science Forum
ISSN (Print)0255-5476


Conference1st International Conference on Advanced Composites for Marine Engineering, ICACME 2013


  • Aluminum alloys
  • Controllable process
  • High speed photographs
  • Layup structure
  • Severe plastic deformation

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

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