Some studies on Mg alloy reinforced with ceramic discontinuous phases

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Authors

  • Sanjay Kumar Thakur
  • Brij Kumar Dhindaw
  • Norbert Hort
  • K. U. Kainer

Some results of the studies where the interface between the Mg alloy matrix or the ceramic reinforcements have been characterized by carrying out experiments to measure dynamic wettability, wear properties and coefficient of thermal expansion in infiltrated composites are presented. The tribological studies and dispersion as well as microhardness measurements show that by coating the particles and by varying the interface characteristic by changing the preheat temperature of the preform, the microhardness values and the tribological properties are altered due to change in wettability. Results of the studies done on measurement of the coefficient of thermal expansion of Mg alloys reinforced with hybrid type of reinforcement consisting of SiCp, C-fibers and Mg2Si in-situ generated particles show that the thermal cycling initially leads to rapid linear expansion of the composite. However, the expansion gets stabilised after a few cycles, perhaps, pointing to the formation of more stable interfaces.

Original languageEnglish
JournalMaterials Science Forum
Volume419-422
Issue numberII
Pages (from-to)837-842
Number of pages6
ISSN0255-5476
Publication statusPublished - 2003
Externally publishedYes
EventSecond Osaka International Conference on Platform Science and Technology for Advanced Magnesium Alloys 2003 - Osaka, Japan
Duration: 26.01.200330.01.2003
Conference number: 2

    Research areas

  • Coefficient of friction, Coefficient of thermal expansion, Infiltration, Metal matrix composites, Microhardness, Wear, Wettability
  • Engineering