| Home | E-Submission/Review | Sitemap | Editorial Office |  
Korean Journal of Metals and Materials Search > Browse Articles > Search

Effects of Electro-force Control on the Microstructure and Welding Characteristic During Resistance Spot Welding
Al 5052-H32 합금의 저항 점 용접 시 가압력 제어 방식에 따른 미세조직 및 용접특성 비교
Wonho Kim, Jaehun Kim, Hyunuk Jun, Jaewon Kim, Eunkyung Lee, Changwook Ji
김원호, 김재훈, 전현욱, 김재원, 이은경, 지창욱
Korean J. Met. Mater. 2022;60(5):350-359.   Published online 2022 Apr 22
DOI: https://doi.org/10.3365/KJMM.2022.60.5.350

Recently, lightweight vehicle bodies are in increasing demand to satisfy exhaust gas and environmental regulations around the world. In particular, aluminum alloys are widely used to manufacture lightweight parts, because of their excellent properties including corrosion resistance and mechanical properties. After the forming process, the welding process is important for..... More

Generating the Microstructure of Al-Si Cast Alloys Using Machine Learning
기계학습에 의한 Al-Si 주조 합금 미세조직 이미지 생성
In-Kyu Hwang, Hyun-Ji Lee, Sang-Jun Jeong, In-Sung Cho, Hee-Soo Kim
황인규, 이현지, 정상준, 조인성, 김희수
Korean J. Met. Mater. 2021;59(11):838-847.   Published online 2021 Oct 28
DOI: https://doi.org/10.3365/KJMM.2021.59.11.838

In this study, we constructed a deep convolutional generative adversarial network (DCGAN) to generate the microstructural images that imitate the real microstructures of binary Al-Si cast alloys. We prepared four combinations of alloys, Al-6wt%Si, Al-9wt%Si, Al-12wt%Si and Al-15wt%Si for machine learning. DCGAN is composed of a generator and a discriminator...... More

Low Temperature Growth of One-Dimensional Al and Al<sub>2</sub>O<sub>3</sub> Nano/Micro-Structures Using Al and SnO<sub>2</sub> Powder Mixture
Al과 SnO2 혼합 분말을 사용한 일차원 Al과 Al2O3 나노/마이크로구조의 저온 성장
Geun-Hyoung Lee
Korean J. Met. Mater. 2021;59(9):677-681.   Published online 2021 Aug 4
DOI: https://doi.org/10.3365/KJMM.2021.59.9.677

One-dimensional Al and Al2O3 nano/microstructures were fabricated via thermal oxidation of Al and SnO2 powder mixtures at temperatures below the melting point of Al (660 oC). Furthermore, the synthesis process was carried out in air at atmospheric pressure, which made the process very simple and easy. Sn metal particles with..... More

Effect of Interfacial Intermetallic Compounds Morphology on Mechanical Properties of Laser Brazing of Aluminum to Steel
Kwang-Hyeon Lee, Su-Jin Lee, In-Duck Park, Kwang-Deok Choi, Chung-Yun Kang, Jeong Suh, Tae-Jin Yoon
Korean J. Met. Mater. 2021;59(9):640-651.   Published online 2021 Aug 4
DOI: https://doi.org/10.3365/KJMM.2021.59.9.640

The paper provides experimental details of the welding and specific examples of welding aluminum welding battery cans and conductive tabs for battery pack manufacture. In this study, we provide experimental details of a process for joining dissimilar materials used in sealing battery parts. A laser brazing technique was used for..... More

Effects of Two-Step Anodization on Surface Wettability in Surface Treatment of Aluminum Alloy
알루미늄 합금의 표면처리에 있어서 2단계 양극산화의 젖음성 영향
Jae Dong Eo, Jingyu Kim, Yongsug Jung, Jong-Hang Lee, Wook Bae Kim
어재동, 김진규, 정용석, 이종항, 김욱배
Korean J. Met. Mater. ;59(2):73-80.   Published online 2021 Jan 27
DOI: https://doi.org/10.3365/KJMM.2021.59.2.73

Industrial anodizing of aluminum alloys is widely employed for various products, to improve corrosion and contamination protection as well as aesthetic appearance. At the same time, nanostructure fabrication using highly ordered porous aluminum oxides has been increasingly investigated in academic research for diverse micro-/nano applications. This approach is based on..... More

                           Cited By 2
Deposition of Low-Resistivity Aluminum Thin Films Via Application of Substrate Bias During Magnetron Sputtering
기판 바이어스와 스퍼터 압력 조절을 통한 저저항 알루미늄 박막 형성 연구
Dooho Choi
Korean J. Met. Mater. 2020;58(10):715-720.   Published online 2020 Oct 5
DOI: https://doi.org/10.3365/KJMM.2020.58.10.715

In this study, the critical role of substrate bias during the sputter deposition of Al thin films is discussed. Two sets of Al thin films having a nominal thickness of 300 nm were deposited at sputtering pressures of 4.1 and 1.5 mTorr, respectively, with an applied negative substrate bias in..... More

                           Cited By 1
Effects of Ni and Cu Addition on Tensile Properties and Thermal Conductivity of High Pressure Die-cast Al-6Si Alloys
고압 다이캐스팅 Al-6Si계 합금의 인장특성 및 열전도성에 미치는 Ni과 Cu 첨가 영향
Jae-Cheol Jang, Kwang Seon Shin
장재철, 신광선
Korean J. Met. Mater. 2020;58(4):217-226.   Published online 2020 Mar 10
DOI: https://doi.org/10.3365/KJMM.2020.58.4.217

In this study, the effects of nickel and copper on the mechanical and thermal properties of Al-Si alloys were investigated, for different alloy compositions. Thermodynamic calculations were carried out to predict the alloys’ solidification behavior (solidification temperature, solid fraction and physical properties (density, thermal conductivity, elastic modulus, bulk modulus)). The..... More

                           Cited By 4
Development of Superhydrophilic 6061 Aluminum Alloy by Stepwise Anodization According to Pore-Widening Time
Pore-Widening 시간에 따른 단계적 양극산화방법을 이용한 초친수 알루미늄 6061 합금 개발
Youngju Park, Hyejeong Ji, Chanyoung Jeong
박영주, 지혜정, 정찬영
Korean J. Met. Mater. 2020;58(2):97-102.   Published online 2020 Jan 8
DOI: https://doi.org/10.3365/KJMM.2020.58.2.97

This study created alumina structures with the highest hydrophilic properties on 6061 aluminum alloy. The anodization process was applied to make various aluminum oxide structures. To create uniform alumina structures on top of a 6061 aluminum alloy surface, after conducting the first anodization in 0.3 M oxalic acid at 40..... More

                           Cited By 1
Optimization of the CMP Process with Colloidal Silica Performance for Bulk AlN Single Crystal Substrate
Hyo Sang Kang, Joo Hyung Lee, Jae Hwa Park, Hee Ae Lee, Won Il Park, Seung Min Kang, Sung Chul Yi
Korean J. Met. Mater. 2019;57(9):582-588.   Published online 2019 Aug 21
DOI: https://doi.org/10.3365/KJMM.2019.57.9.582

Chemical mechanical polishing (CMP) of bulk AlN was performed with colloidal silica slurry at pH 9 for different times. The result shows that colloidal silica slurry at pH 9, which has the relatively high surface charge of -50.7 mV is most stable, and it was selected as chemically optimum condition..... More

                           Cited By 2
Effects of Exposure Temperature on Tensile and Charpy Impact Properties of the 7xxx Aluminum Alloy for Aerospace Applications
항공용 7xxx계 알루미늄 합금의 고온 노출 온도가 인장 및 샤르피 충격 특성에 미치는 영향
Woojin An, Dohee Kim, Bong-Hwan Kim, Shae Kwang Kim, Sangshik Kim, Hyokyung Sung
안우진, 김도희, 김봉환, 김세광, 김상식, 성효경
Korean J. Met. Mater. 2019;57(4):214-226.   Published online 2019 Apr 5
DOI: https://doi.org/10.3365/KJMM.2019.57.4.214

Aluminum alloys have been widely used for aerospace applications due to their high strength and lightweight. New demand is growing for aluminum alloys with high temperature mechanical properties that can sustain plastic deformation at high temperature. In this study, correlations among microstructure, tensile properties and Charpy impact properties were analyzed..... More

                           Cited By 3
Estimation of Chemical Composition of Al-Si Cast Alloys Using Image Recognition
화상인식을 이용한 Al-Si 주조용 합금의 화학조성 예측
Sang-Jun Jeong, In-Kyu Hwang, In-Sung Cho, Hee-Soo Kim
정상준, 황인규, 조인성, 김희수
Korean J. Met. Mater. 2019;57(3):184-192.   Published online 2019 Feb 14
DOI: https://doi.org/10.3365/KJMM.2019.57.3.184

In this study, we analyzed the chemical composition of Al-Si cast alloys from microstructural images, using image recognition and machine learning. Binary Al-Si alloys of Si = 1~10 wt% were cast and prepared as reference images in the dataset used for machine learning. The machine learning procedure was constructed with..... More

                           Cited By 6
Resistance to Stress Corrosion Cracking of High-Strength 7xxx Series Aluminum Alloys in 3.5% NaCl Solution
항공용 고강도 7xxx계 알루미늄 합금의 3.5% NaCl 수용액에서의 응력부식균열 저항성
Yurim Lee, Heesoo Choi, Soojin Ahn, Cheoljoo Lee, Sangshik Kim
이유림, 최희수, 안수진, 이철주, 김상식
Korean J. Met. Mater. 2018;56(10):708-717.   Published online 2018 Oct 5
DOI: https://doi.org/10.3365/KJMM.2018.56.10.708

For proper maintenance and inspection scheduling of aircraft, it is extremely important to measure the resistance to stress corrosion cracking (SCC) behavior of aluminum alloys used for aircraft structures. The SCC resistances of high-strength 7xxx-series aluminum alloys, including 7050-T7451, 7475-T7351 and 7140-T7451, were evaluated along longitudinal (L) and transverse (T)..... More

                           Cited By 2
Effects of Direct Current on the Wetting between Molten Al and a Graphite Substrate
In-Jin Shon
Korean J. Met. Mater. 2018;56(7):505-510.   Published online 2018 Jul 5
DOI: https://doi.org/10.3365/KJMM.2018.56.7.505

Graphite fiber attracted much attention in the area of aluminum based composite due to its low density and high strength. However, one of the major drawbacks in fabricating graphite reinforced metal matrix composites (MMCs) is that aluminum generally does not wet graphite. Therefore, it is difficult to impregnate the graphite..... More

                           Cited By 2
Bridge Burst Characteristics of Aluminum and Copper Thin-Film Bridges in Electrical Initiation Devices
Kyoungjin Kim, Kyu-Hyoung Kim, Seung-gyo Jang
Korean J. Met. Mater. 2018;56(3):235-243.   Published online 2018 Mar 6
DOI: https://doi.org/10.3365/KJMM.2018.56.3.235

The optimal design of electrical initiation devices for explosive charges and other high energy materials critically depends on the bridge burst or the electrical explosion of the thin-film metallic bridges. It is therefore quite important to select the right material with suitable explosion properties for the metallic bridge film. However,..... More

Effect of Aluminum Welding Wire Mg Content on the Mechanical Properties of Al 5083 Alloy Weld Metal
Al 5083 합금 용접부의 기계적 물성에 미치는 Mg의 영향
Dongyoon Kim, Dongcheol Kim, Munjin Kang, Young-Min Kim
김동윤, 김동철, 강문진, 김영민
Korean J. Met. Mater. 2017;55(10):716-723.   Published online 2017 Sep 28
DOI: https://doi.org/10.3365/KJMM.2017.55.10.716

A new aluminum welding wire with 0.8 wt% higher in Mg content was developed and compared with commercial welding wire of the 5000 series. The weldability of the Al5083 base material was evaluated using high current metal inert gas (MIG) welding, using the developed Al5183 and commercial Al5183 welding wire...... More

1 |
Email Alert
Author's Index
Impact factor
The Korean Institute of Metals and Materials
SCImago Journal & Country Rank
Similarity Check
Crossref Cited-by Linking
Editorial Office
The Korean Institute of Metals and Materials
6th Fl., Seocho-daero 56-gil 38, Seocho-gu, Seoul 06633, Korea
TEL: +82-2-557-1071   FAX: +82-2-557-1080   E-mail: metal@kim.or.kr
About |  Browse Articles |  Current Issue |  For Authors and Reviewers
Copyright © The Korean Institute of Metals and Materials.                 Developed in M2PI