| Home | E-Submission/Review | Sitemap | Editorial Office |  
top_img
Volume 58(9); Sep 2020
RSS feed
Research Papers
583 Analysis of Stress Corrosion Cracking Propagation of SS304 Stainless Steel Using Crack Shape and Etch Pits
스테인리스강 SS304의 균열 형상과 에치 피트를 이용한 응력부식균열 전파 기구 해석
Byung Hak Choe, Sang Woo Lee, Jong Kee Ahn, Jinhee Lee
최병학, 이상우, 안종기, 이진희
Korean J. Met. Mater. 2020;58(9):583-589.   Published online 2020 Aug 19
DOI: https://doi.org/10.3365/KJMM.2020.58.9.583

Abstract
Austenitic stainless steel SS304 is vulnerable to Cl atmosphere SCC (stress corrosion crack). In this study, SCC phenomena related to stress and corrosion composition were analyzed to identify the mechanism for SCC initiation and propagation in SS304. The microstructure and mechanical properties resulting from crack propagation were analyzed by OM,..... More

                        
590 Short Range Ordering (SRO) Reaction in Ni-base Alloy X-750
Ni-base X-750 합금에서의 단 범위 규칙화 반응
SungSoo Kim, Jung Jong Yeob, Young Suk Kim
김성수, 정종엽, 김영석
Korean J. Met. Mater. 2020;58(9):590-598.   Published online 2020 Aug 13
DOI: https://doi.org/10.3365/KJMM.2020.58.9.590

Abstract
The short range ordering (SRO) reaction of the X-750 Ni-base alloy used as a garter spring material for CANDU reactors was systematically investigated through differential scanning calorimeter (DSC) analysis. Water quenching (WQ) after solution annealing (SA) and 20% cold rolled (CR) X-750 were prepared and these samples were subjected to..... More

                        
599 Study on Hydrogen Diffusion and Sulfide Stress Cracking Behaviors of Simulated Heat-Affected Zone of A516-65 Grade Pressure Vessel Carbon Steel
A516-65급 압력용기용 강재의 용접모사 열처리를 통한 용접열영향부의 수소확산 및 황화물응력균열 거동 연구
Dong Min Cho, Jin-seong Park, Jin Woo Lee, Sung Jin Kim
조동민, 박진성, 이진우, 김성진
Korean J. Met. Mater. 2020;58(9):599-609.   Published online 2020 Aug 13
DOI: https://doi.org/10.3365/KJMM.2020.58.9.599

Abstract
Hydrogen diffusion and sulfide stress cracking of simulated heat-affected zone (HAZ) of A516- 65 grade steel were examined using an electrochemical permeation technique, glycerin volumetric method, and constant loading method. HAZ samples were fabricated using a metal thermal cycle simulator with a welding heat input of 20, 35, and 50..... More

                        
610 Corrosion Behaviors of the Eutectic Structure in Zn-Al-Mg Alloy Coated Steel in Chloride Containing Aqueous Environment
염수환경 내 Zn-Al-Mg 합금도금강재의 공정조직 부식거동
Jae-Won Lee, Se-Young Oh, Bora Park, Min-Suk Oh, Sung Jin Kim
이재원, 오세영, 박보라, 오민석, 김성진
Korean J. Met. Mater. 2020;58(9):610-616.   Published online 2020 Aug 19
DOI: https://doi.org/10.3365/KJMM.2020.58.9.610

Abstract
To clearly understand the effect of the eutectic structure in the Zn-Al-Mg alloy coating on the corrosion behaviors in chloride containing aqueous environments, a bulk Zn-MgZn2 sample was fabricated by diffusion bonding process, and a variety of experiments, such as electrochemical polarization and galvanic corrosion measurements, salt spray tests, and..... More

                        
617 Carburizing Behavior of AISI 4115 Steel According to the Flow Rates of Acetylene in Vacuum Carburizing
AISI 4115 강의 진공 침탄 시 아세틸렌 유량에 따른 침탄 거동
Gi-hoon Kwon, Kyoungil Moon, Young-Kook Lee, Minsu Jung
권기훈, 문경일, 이영국, 정민수
Korean J. Met. Mater. 2020;58(9):617-625.   Published online 2020 Aug 13
DOI: https://doi.org/10.3365/KJMM.2020.58.9.617

Abstract
The vacuum carburizing behavior of AISI 4115 steel according to acetylene flow rates (1, 5, 10, 20, 30, 40, and 50 sccm) and temperatures (900, 950, and 1000 oC) was quantitatively investigated through microstructure, carbon concentration and hardness analyses. As the acetylene flow rate increased, the penetration rate of carbon..... More

                        
626 Graphene Oxide Coated Silver Nanofiber Transparent Conducting Electrode
전기방사법을 이용한 산화 그래핀-은 나노섬유 투명전극
Jae Young Hyeon, Sung-Hoon Choa, Kyoung Wan Park, Jung Hyun Sok
현재영, 좌성훈, 박경완, 석중현
Korean J. Met. Mater. 2020;58(9):626-632.   Published online 2020 Aug 19
DOI: https://doi.org/10.3365/KJMM.2020.58.9.626

Abstract
We fabricated a transparent conducting electrode composed of graphene oxide (GO) and silver (Ag) nanofibers. The graphene oxide was spray-coated on the Ag nanofiber film, which was fabricated by electrospinning process. Ag/poly(vinyl alcohol) ink was fabricated in a polymer matrix solution using the solgel method. The sprayed film was sintered..... More

                        
633 A study on the Microstructures and the Suppression of Grain Growth in Rapidly Solidified Fe-Si-B(-Cu-Zr-Ca) Base Nanostructured Alloys
급속응고된 Fe-Si-B(-Cu-Zr-Ca)계 나노결정 합금의 미세조직과 결정립성장 억제에 관한 연구
Hyun Ah Im, Jun Young Jeong, Su Bong An, Keun Young Sohn, Won-Wook Park
임현아, 정준영, 안수봉, 손근용, 박원욱
Korean J. Met. Mater. 2020;58(9):633-638.   Published online 2020 Aug 19
DOI: https://doi.org/10.3365/KJMM.2020.58.9.633

Abstract
Magnetic induction and resonance wireless power charging generally operates in a high frequency range, and its efficiency is degraded by the generation of heat at high frequency. This makes it necessary to develop new soft magnetic materials capable of maintaining their characteristics even at high frequency. The purpose of this..... More

                        
639 Preparation of Electroformed Copper-Nickel Multi-Nano-Layers and Characterization of Their Electromagnetic Shielding Effectiveness
구리-니켈 다층 나노 도막 제조와 전자파 차폐 효과 평가
Yong Choi
최용
Korean J. Met. Mater. 2020;58(9):639-644.   Published online 2020 Aug 19
DOI: https://doi.org/10.3365/KJMM.2020.58.9.639

Abstract
Thin copper-nickel foil with multi-nano layers was prepared by pulse-electroforming to develop a high performance electromagnetic shielding material for electronic devices. The pulse electroforming conditions of the aqueous solution chemistry were selected based on the aqueous copper-nickel-sulfur phase diagram and an evaluation of the deposition rate using the finite element..... More

                        
645 Facile Synthesis of ZnO Thin Films at Low Temperatures Using an Additive-Free Electrochemical Oxidation Method
Euije Jo, Dongwan Kim, Jae-Young Leem
Korean J. Met. Mater. 2020;58(9):645-652.   Published online 2020 Aug 13
DOI: https://doi.org/10.3365/KJMM.2020.58.9.645

Abstract
Because of their simplicity and low equipment costs, various oxidation methods can be used to create metal oxides, but they still require long processing times and/or high temperatures. In this study, a new electrochemical oxidation (ECO) method, which oxidizes metal in DI water with a constant flowing current to both..... More

                        
E-Submission
Email Alert
Author's Index
Specialties
Impact factor
The Korean Institute of Metals and Materials
SCImago Journal & Country Rank
Scopus
GoogleScholar
Similarity Check
Crossref Cited-by Linking
KOFST
COPE
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. All rights reserved.                 Developed in M2Community