Kim, Jae-Yeon Hwang, Jung-Woo Kim, Hye-Young Lee, Seung-Mi Jung, Woo-Sang Byeon, Jai-Won 2024-01-20T01:31:06Z 2024-01-20T01:31:06Z 2021-09-05 2017-06 1733-3490 https://pubs.kist.re.kr/handle/201004/122683 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 mu m to 3 mu m and microhardness increased from 52 Hv to 83 Hv (i.e., 71% increase). English POLSKA AKAD NAUK, POLISH ACAD SCIENCES, INST METALL & MATER SCI PAS MATRIX COMPOSITES FABRICATION OF AZ31/CNT SURFACE NANO-COMPOSITE BY DOUBLE-PASS FRICTION STIR PROCESSING Article 10.1515/amm-2017-0149 1 ARCHIVES OF METALLURGY AND MATERIALS, v.62, no.2, pp.1039 - 1042 ARCHIVES OF METALLURGY AND MATERIALS 62 2 1039 1042 scie scopus 000406180900080 2-s2.0-85026873366 Metallurgy & Metallurgical Engineering Metallurgy & Metallurgical Engineering Article MATRIX COMPOSITES Surface Modification Double-pass Friction Stir Processing AZ31 Composite CNT