Lee, Seung-Yong Kim, Byung-Kyu Lee, Sang-Hyeok Kim, Dong-Ik Shim, Jae-Hyeok Jung, Woo-Sang Suh, Jin-Yoo 2024-01-19T18:30:36Z 2024-01-19T18:30:36Z 2021-09-04 2020-01-15 0925-8388 https://pubs.kist.re.kr/handle/201004/119088 During aging at 900 degrees C for 100 h of IN740H Ni-based superalloy, unexpected needle-like MC carbide formed at or near incoherent twin boundary having a twin relationship with surrounding matrix. Similar to the known needle-like M23C6 precipitation, the nucleation and growth of MC carbide in needle-like morphology resulted from emission of Shockley partial dislocations and inherent directional stress field originated from incoherent twin boundary, respectively. Also, this precipitation process essentially gave rise to the twin relationship with its surrounding matrix. (C) 2019 Elsevier B.V. All rights reserved. English ELSEVIER SCIENCE SA AUSTENITIC STAINLESS-STEELS ANNEALING TWINS M23C6 CARBIDE CREEP MICROSTRUCTURE PRECIPITATION STABILITY ALLOY PHASE DISLOCATIONS Formation of needle-like MC carbide at or near incoherent twin boundary in IN740H Ni-based superalloy Article 10.1016/j.jallcom.2019.152222 1 JOURNAL OF ALLOYS AND COMPOUNDS, v.813 JOURNAL OF ALLOYS AND COMPOUNDS 813 scie scopus 000490133900024 2-s2.0-85072063443 Chemistry, Physical Materials Science, Multidisciplinary Metallurgy & Metallurgical Engineering Chemistry Materials Science Metallurgy & Metallurgical Engineering Article AUSTENITIC STAINLESS-STEELS ANNEALING TWINS M23C6 CARBIDE CREEP MICROSTRUCTURE PRECIPITATION STABILITY ALLOY PHASE DISLOCATIONS Ni-based superalloy Carbide Incoherent twin boundary