FILLER METAL FOR NICKEL-BASED ALLOYS AND METHOD OF USING IT TO CLOSE CAVITY ON THE UPPER SURFACE OF THE BLADE

REPAIR METHOD FOR 247LC ALLOY HEAT RESISTANT ALLOY USED AT HIGH TEMPERATURES

MANUFACTURING METHOD OF GAS TURBINE BLADES

Sung-Jin  Lee and Eun-Joon Chun*, Applicability of Hf-Free 247LC as a Filler Metal for Hot Crack-Free 247LC Superalloy Welds Assisted by Varestraint Testing , Materials, 2025. https://doi.org/10.3390/ma18061284 

Min-chang Shin and  Eun-Joon Chun*, New Findings on Reduced Solidification Brittle Temperature Range in Epitaxially Grown CMSX-4 Superalloy Welds via Varestraint Testing, Materials Today Communications, 2025. https://doi.org/10.1016/j.mtcomm.2024.111201

Sung-Jin  Lee and Eun-Joon Chun* et al., Effects of Hf and carbide formation behavior on solidification cracking susceptibilities of 247LC superalloy welds, Materials Chemistry and Physics, 2024. https://doi.org/10.1016/j.matchemphys.2024.129147.

Hye–Eun Jeong, and Eun-Joon Chun* et al., Effect of local carbide formation behavior on repair weld liquation cracking susceptibility for long-term-serviced 247LC superalloy, Journal of Materials Research and Technology, 2024. https://doi.org/10.1016/j.jmrt.2023.12.003.

Sung-Jin Lee and Eun-Joon Chun* et al. Solidification Crack Free Welding Strategy via Ultra High Precision Laser Scanning at a Single Grain of Directionally Solidified and Single Crystal Superalloys, Journal of Welding and Joining, 2023. DOI: https://doi.org/10.5781/JWJ.2023.41.4.4 

Eun-Joon Chun* et al., Liquation Crack-free Welding Strategy for 247LC DS Superalloy by Control of Pipeline Diffusion via Ultra-high-speed Laser Beam Scanning, Science and Technology of Welding Joining, 2023. https://doi.org/10.1080/13621718.2023.2189367  

Eun-Joon Chun* ,  Strategy of Suppressing the Solidification Cracking Susceptibility of 247LC Superalloy Weld Metals using Commercial Ni-Based Fillers), Journal of Welding and Joining, 2023. DOI:https://doi.org/10.5781/JWJ.2023.41.1.7 

Eun-Joon Chun* et al., "Liquation cracking susceptibility of remelted and reheated weld metals in CM247LC superalloy using multi-bead Varestraint testing", Science and Technology of Welding Joining, 2023. https://doi.org/10.1080/13621718.2022.2122246 

Kyeong-Min Kim, and Eun-Joon Chun* et al., “Quantifying susceptibility to solidification cracking in oscillated CM247LC superalloy welds via Varestraint testing”, Metals and Materials International, 2023. https://doi.org/10.1007/s12540-022-01250-4 

Eun-Joon Chun* et al., "Suppression of liquation cracking susceptibility via pre-weld heat treatment for manufacturing of CM247LC superalloy turbine blade welds", Journal of Advanced Joining Processes, 2021. https://doi.org/10.1016/j.jajp.2021.100069 

Kyeong-Min Kim and Eun-Joon Chun* et al., “Effect of ERNiFeCr-2 Filler Metal on Solidification Cracking Susceptibility of CM247LC Superalloy Welds”, Korean Journal of Metals and Materials, 2021. http://dx.doi.org/10.3365/KJMM.2021.59.10.698