Restoration of steel properties after long-term operation at bends of TPP steam pipelines by heat treatment

Halyna Krechkovska^1,2, Ivan Tsybailo¹, Oleksandra Student¹, Lesya Svirska¹, Sergiy Korniy¹

¹Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine; ²Lviv Polytechnic National University

THE EFFECT OF IN-SERVICE DEGRADATION OF X52 GAS PIPE STEEL ON FRACTURE TOUGHNESS OF HYDROGENATED SPECIMENS EVALUATED BY THE J-INTEGRAL METHOD

Hryhoriy Nykyforchyn, Oleksandr Tsyrulnyk, Halyna Krechkovska, Myroslava Hredil, Oleh Venhryniuk

Karpenko Physico-Mechanical Institute of the National Academy of Sciences of Ukraine, Ukraine

Numerical assessment of cold crack susceptibility of X65 pipe steel during in-service repair welding of pipeline in transportation of gas-hydrogen blends

Oleksii Milenin^1,2, Olena Velykoivanenko¹, Galyna Rozynka¹, Nina Pivtorak¹

¹E.O. Paton Electric Welding Institute of the NAS of Ukraine; ²Kyiv Academic University

ENHANCING THE INTEGRITY OF A PIPING SYSTEM SUBJECTED TO LONG-TERM OPERATION AT HIGH-TEMPERATURE IN THE CREEP RANGE

Hyeong-Yeon LEE¹, Ki-Ean NAM¹, Seung-Woo HA², Min-Su YOON²

¹KAERI (Korea Atomic Energy Research Institute), Korea, Republic of (South Korea); ²KLES (Korea Leading Engineering System)

Fracture mechanical material parameters for the assessment of existing welded railway bridges

Dorina Siebert, Christina Radlbeck, Martin Mensinger

Technical University of Munich, TUM School of Engineering and Design, Chair of Metal Structures, Germany

Strain rate dependence measurement method based on ball impact and indentation tests

Kiyohiro Ito¹, Yuji Ichikawa²

¹Suwa University of Science, Japan; ²Tohoku University