Fabrication of AZ31/CNT Surface Nano-Composite by Double-Pass Friction Stir Processing

Jae Yeon Kim, Jung Woo Hwang, Hye Young Kim, Seung Mi Lee, Woo Sang Jung, Jai Won Byeon

Research output: Contribution to journalArticlepeer-review

15 Scopus citations

Abstract

Double-pass Friction Stir Processing (FSP) was applied to fabricate an AZ31/CNT nano-composite for surface hardening of lightweight structural components. The effects of double-pass FSP as well as groove depth (i.e., volume fraction of CNT) on the CNT distribution, dynamically recrystallized grain size, and resulting microhardness were studied. Double-pass FSP was performed for the CNT-filled plate-type specimen with different groove depths of 2, 3, and 4 mm. By applying double-pass FSP, the average size of CNT clusters decreased, implying a more homogeneous distribution. Compared with the FSPed specimen without CNT, grain size was refined from 19 μm to 3 μm and microhardness increased from 52 Hv to 83 Hv (i.e., 71% increase).

Original languageEnglish
Pages (from-to)1039-1042
Number of pages4
JournalArchives of Metallurgy and Materials
Volume62
Issue number2
DOIs
StatePublished - 1 Jun 2017

Keywords

  • AZ31
  • CNT
  • Composite
  • Double-pass Friction Stir Processing
  • Surface Modification

Fingerprint

Dive into the research topics of 'Fabrication of AZ31/CNT Surface Nano-Composite by Double-Pass Friction Stir Processing'. Together they form a unique fingerprint.

Cite this