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Korean J. Met. Mater.
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Korean Journal of Metals and Materials
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Effect of Low Transformation Temperature Welding Consumable on Microstructure, Mechanical Properties and Residual Stress in Welded Joint of A516 Carbon Steel
Sungki Choi, Junsang Lee, Jae-Yik Lee, Seung-Kyun Kang, Young-Cheon Kim, Seung-Joon Lee, Dongil Kwon
Korean J. Met. Mater.
2021;59(8):524-532. Published online 2021 Jul 5
DOI:
https://doi.org/10.3365/KJMM.2021.59.8.524
Abstract
The microstructure, mechanical properties and residual stress of flux-cored arc welded ASTM A516-70N carbon steel using a Mn-based low-temperature transformation (LTT) welding consumable were investigated. Microstructural analysis with X-ray diffraction, an electron backscattered diffractometer and a field-emission scanning electron microscope showed that the LTT weld metal was made up of.....
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Web of Science 1
Crossref 1
A Further Study on Knoop Indentation Plastic Deformation for Evaluating Residual Stress
Woojoo Kim, Kyungyul Lee, Jong-hyoung Kim, Young-Cheon Kim, Dongil Kwon
Korean J. Met. Mater.
2020;58(8):515-521. Published online 2020 Jul 27
DOI:
https://doi.org/10.3365/KJMM.2020.58.8.515
Abstract
A method for evaluating residual stress using an instrumented indentation test was developed some decades ago. More recently, another method was developed, using a Knoop indenter. The conversion factor ratio, which is one of the key factors in the evaluation algorithm, has been taken to be 0.34, although this value.....
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Web of Science 2
Crossref 3
Characterization of Viscoelastic Behavior of Poly(dimethylsiloxane) by Nanoindentation
Jong-hyoung Kim, Jinwoo Lee, Woojoo Kim, Jongheon Kim, Seung-Kyun Kang, Dongil Kwon
Korean J. Met. Mater.
2019;57(5):289-294. Published online 2019 May 5
DOI:
https://doi.org/10.3365/KJMM.2019.57.5.289
Abstract
In this study, we characterize the viscoelastic behavior of polymers using nanoindentation. We applied the indentation representative stress approach and elastic solution to the Maxwell model and determined that there was a linear relationship between the inverses of the initial unloading stiffness and indentation unloading rate. From nanoindentation tests with.....
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Web of Science 5
Crossref 4
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