Nack J. Kim

Purdue University West Lafayette

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Sunghak Lee

Pohang University of Science and Technology

103

Byeong‐Joo Lee

Pohang University of Science and Technology

Alireza Zargaran

Pohang University of Science and Technology

Seok Su Sohn

Korea University

Sang Yong Shin

University of Ulsan

Sung S. Park

University of Massachusetts Boston

Byeong‐Chan Suh

Korea Institute of Materials Science

Hyoung Seop Kim

Pohang University of Science and Technology

Byoungchul Hwang

Seoul National University of Science and Technology

Dae Hoon Kang

Novel (United States)

Cooperative Institutions

Pohang University of Science and Technology

203

Pohang Iron and Steel (South Korea)

Seoul National University

Korea University

Yonsei University

Korea Institute of Materials Science

Korea Advanced Institute of Science and Technology

Samsung (South Korea)

Materials Science & Engineering

Korea Atomic Energy Research Institute

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Effects of morphology on the mechanical behavior of a dual phase Fe/2Si/0.1C steel

Metallurgical Transactions A (1981)

Nack J. Kim G. Thomas

Elongation

Dual-phase steel

Coalescence (physics)

Void (composites)

Ductility (Earth science)

10.1007/bf02648546

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Citations (266)

Densification Behavior of PIMed TiAl Parts.

Journal of the Japan Society of Powder and Powder Metallurgy (1999)

Yongchan Kim Nack J. Kim Tae-Sik Yoon Seon-Yong Ahn

Powder Injection Molding (PIM) of Ti-48Al was attempted with a special interest in its densification behavior at different processing conditions such as debinding atmosphere, sintering temperature and time. Specimens debinded in H2 showed high densification rate, resulting in 97% density after sintering at 1350°C in vacuum for 3 hours. Fine Al2O3 particles about 1 μm size were observed along the prior particle boundaries of the sintered specimens. Specimens debinded in Ar and sintered in vacuum at 1350°C and 1400°C for 3 hours resulted in similar densifications of 91.7% and 91.5%, respectively. The microstructures were, however, quite different; Sintering above α/(α+γ) transus temperature showed a fully lamellar microstructure with a coarse grain size, whereas sintering at 1350°C showed a fine grained duplex microstructure. Presintering at 1000°C for 3 hours eliminated the macro pores and improved densification to 93.4% when the specimen was subsequently sintered at 1350°C for 3 hours. Densification was improved as the sintering time increased, reaching a near full density of 98.8% after 30 hours sintering at 1350°C.

10.2497/jjspm.46.882

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Citations (6)

Response to comments on: The phase-shift method for determining Langmuir adsorption isotherms of over-potentially deposited hydrogen for the cathodic H2 evolution reaction at poly-Re/aqueous electrolyte interfaces[Hydrogen Energy 30 (2005) 485–499]

International Journal of Hydrogen Energy (2005)

Jang H. Chun S JEON Nack J. Kim Jang H. Chun

Langmuir adsorption model

10.1016/j.ijhydene.2005.02.007

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Citations (10)

Role of Zr in the Microstructure Evolution in Mg‐Zn‐Zr Based Wrought Alloys

Magnesium technology (2015)