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Featured researches published by Chui-Hung Chiu.


Journal of Materials Engineering and Performance | 2012

Rate and Orientation Dependence of Formability in Fine-Grained AZ31B-O Mg Alloy Thin Sheet

Horng-Yu Wu; Pin-Hou Sun; Hung-Wei Chen; Chui-Hung Chiu

Uniaxial tension and press forming tests were carried out at two different strain rates and temperatures to investigate the formability of fine-grained AZ31B-O Mg alloy thin sheet. Formability parameters were determined by tensile test results. The tensile properties and formability parameters were correlated with the forming limit diagrams. The present work focused on the effects of loading orientation and deformation rate on formability. Anisotropic behaviors were observed in the mechanical properties. Maximum strengths were obtained in the direction perpendicular to the rolling direction (RD). It can be concluded that the formability of the rolled fine-grained AZ31B-O Mg alloy sheet can be influenced by loading orientation and deformation rate. Stretch formability can be enhanced at a higher deformation rate, resulting from a lower anisotropy and a higher work hardening effect. In contrast, the drawing processes can be performed at a lower deformation rate to take advantage of a higher anisotropic behavior. Specimens with the RD parallel to the major strain in the press forming tests can enhance stretch formability, whereas specimens with the RD perpendicular to the major strain can improve deep-drawability.


Journal of Alloys and Compounds | 2008

Microstructure and mechanical behavior of LZ91 Mg alloy processed by rolling and heat treatments

Chui-Hung Chiu; Horng-Yu Wu; Jian-Yih Wang; Shyong Lee


Journal of Materials Science | 2012

Hot deformation characteristics and strain-dependent constitutive analysis of Inconel 600 superalloy

Horng-Yu Wu; Feng-jun Zhu; Shang-Chih Wang; Woei-Ren Wang; Chien-Cheng Wang; Chui-Hung Chiu


Journal of Materials Processing Technology | 2009

Effect of heat treatment on the microstructure and mechanical properties of the consolidated Mg alloy AZ91D machined chips

Horng-Yu Wu; Chang-chuan Hsu; Jen-Bin Won; Pin-Hou Sun; Jian-Yih Wang; Shyong Lee; Chui-Hung Chiu; Shan Torng


Materials Science and Engineering A-structural Materials Properties Microstructure and Processing | 2006

Effect of lubrication on deformation characteristics of a superplastic 5083 Al alloy during bi-axial deformation

Horng-Yu Wu; Chui-Hung Chiu; Jiann-Yih Wang; Shyong Lee


Procedia Engineering | 2012

Tensile Properties and Shallow Pan Rapid Gas Blow Forming of Commercial Fine-grained Mg Alloy AZ31B Thin Sheet

Horng-Yu Wu; Pin-Hou Sun; Feng-jun Zhu; Hsu-cheng Liu; Chui-Hung Chiu


Materials Transactions | 2006

Microstructural Characterization of a Mg-9%Li-1%Zn Alloy

Chui-Hung Chiu; Jian-Yih Wang; Horng-Yu Wu


Journal of Materials Processing Technology | 2009

Deformation characteristics and cavitation during multiaxial blow forming in superplastic 8090 alloy

Horng-Yu Wu; Jiin-her Hwang; Chui-Hung Chiu


Procedia Engineering | 2012

Tensile Flow Behavior in Inconel 600 Alloy Sheet at Elevated Temperatures

Horng-Yu Wu; Pin-Hou Sun; Feng-jun Zhu; Shang-Chih Wang; Woei-Ren Wang; Chien-Cheng Wang; Chui-Hung Chiu


Journal of Materials Science | 2006

Cavitation characteristics of a superplastic 5083 Al alloy during gas blow forming

Horng-Yu Wu; Jau-yuean Perng; Shyh-hung Shis; Chui-Hung Chiu; Shyong Lee; Jian-Yih Wang

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Jian-Yih Wang

National Dong Hwa University

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Shyong Lee

National Central University

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Pin-Hou Sun

National Central University

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Chien-Cheng Wang

Industrial Technology Research Institute

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Shang-Chih Wang

Industrial Technology Research Institute

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Woei-Ren Wang

Industrial Technology Research Institute

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