Microstructure, Micro‐Hardness, and Corrosion Resistance of Commercial Purity Al Processed by Hollow‐Cone High‐Pressure Torsion

Jing Guo; Xiaorong Zhang; Dan Kong; Soo‐Hyun Joo; Wooyeol Kim; Hyoung Seop Kim; Xiaohui Zhang

doi:10.1002/adem.201800905

journal article·2019-03

Microstructure, Micro‐Hardness, and Corrosion Resistance of Commercial Purity Al Processed by Hollow‐Cone High‐Pressure Torsion

Jing Guo, Xiaorong Zhang, Dan Kong, Soo‐Hyun Joo, Wooyeol Kim, Hyoung Seop Kim, Xiaohui Zhang

Advanced Engineering Materials· Volume 21· Issue 3

Publisher page

Source abstract

Abstract

Hollow‐cone high‐purity commercial Al prepared using copper mold suction casting method is annealed at 600 °C, then processed by high‐pressure torsion of 0.25 and 0.5 revolutions to produce ultrafine‐grained materials. Microstructure, micro‐hardness, and corrosion resistance in 3.5% NaCl solution are investigated in this paper. The grain size of the deformed Al after 0.25 and 0.5 revolutions are 1.16 and 0.73 µm, respectively, which are smaller than that of the annealed specimen of 33.46 µm determined using electron backscatter diffraction. The micro‐hardness of the deformed Al is two‐times larger than that of the annealed specimen. In addition, corrosion resistance of the deformed Al is higher than that of the annealed specimen, which is verified by polarization tests and scanning electron microscopy.

Source: crossref · Quality: baseline

Research context

Metals & alloys

OpenAlex topics: Microstructure and mechanical properties · Aluminum Alloys Composites Properties · Advanced materials and composites

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

College of Mechanical and Electronic Engineering Shandong Agricultural University Taian Shandong 271018 P. R. China

Shandong Provincial Key Laboratory of Horticultural Machineries and Equipments Taian Shandong 271018 P. R. China

Institute for Materials Research Tohoku University Sendai 980‐8577 Japan

Department of Materials Science and Engineering Pohang University of Science and Technology (POSTECH) Pohang 790‐784 Korea

Funding

Shandong Province · Shandong Agricultural University · National Research Foundation of Korea

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