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  1. No Access

    Chapter and Conference Paper

    Electrochemical Characteristics of Delta Ferrite in Thermally Aged Austenitic Stainless Steel Weld

    An austenitic stainless steel Type 316L weld was thermally aged for 20,000 h at 400 °C and electrochemical characterization was performed to measure corrosion resistance in δ–ferrite phase. It is well known th...

    Gokul Obulan Subramanian, Sunghoon Hong… in Proceedings of the 18th International Conf… (2019)

  2. No Access

    Article

    Evaluation of J-groove weld residual stress and crack growth rate of PWSCC in reactor pressure vessel closure head

    Over the last decade, primary water stress corrosion cracking (PWSCC) has been frequently found in pressurized water reactor (PWR) applications. Especially, PWSCC has occurred in long-term operated PWRs. As th...

    Seung Hyuk Oh, Tae Young Ryu… in Journal of Mechanical Science and Technolo… (2015)

  3. No Access

    Article

    Investigation on the effects of geometric variables on the residual stresses and PWSCC growth in the RPV BMI penetration nozzles

    This study investigated the effects of various geometric variables on the residual stresses and PWSCC growth of RPV BMI penetration nozzles. An FE residual stress analysis procedure was developed and validated...

    Jong-Sung Kim, Myoung-Soo Ra… in Journal of Mechanical Science and Technology (2015)

  4. No Access

    Article

    Molecular imaging for In vivo tracking of stem cell fate

    Stem cells have a potential to dramatically change the common modalities of treatment for many diseases. Despite their rapid transition from animal studies to clinical applications, a number of unanswered ques...

    Kyoung Soo Lee, Eun Ji Kim, Ji Suk Choi, Ick Chan Kwon… in Macromolecular Research (2014)

  5. No Access

    Article

    The effect of polymer fill ratio in pillar structure for piezoelectric energy harvester

    One method of energy harvesting is to use piezoelectric devices, which are able to interchange electrical energy and mechanical strain or vibration. This study is to experimentally investigate the behavior of ...

    Kyoung-Soo Lee, Dong-** Shin, Moon-Soon Chae, Sang-Mo Koo… in Electronic Materials Letters (2013)

  6. No Access

    Article

    Bubble growth in mold cavities during microcellular injection molding processes

    Bubble nucleation and growth are the key steps in polymer foam generation processes. The mechanical properties of foam polymers are closely related to the size of the bubbles created inside the material, and m...

    Yongrak Moon, Kyoung-soo Lee, Sung W. Cha in Journal of Mechanical Science and Technology (2009)

  7. No Access

    Article

    Finite element analysis and measurement for residual stress of dissimilar metal weld in pressurizer safety nozzle mockup

    Finite element (FE) analysis and experiment for weld residual stress (WRS) in the pressurizer safety nozzle mockup is described in various processes and results. Foremost of which is the dissimilar simulation ...

    Kyoung-soo Lee, W. Kim, Jeong-geun Lee… in Journal of Mechanical Science and Technolo… (2009)