Dual-precipitates enhance fatigue resistance in an additively manufactured high-entropy alloy

The authors are grateful for the support of the National Science and Technology Council (NSTC) under Grants NSTC 114-2221-E-A49-002, 114-2923-E-A49-003-MY3, and 114-2811-E-A49-527. E.-W.H. and J.-S.L. appreciate the travel support from the National Synchrotron Radiation Research Center (NSRRC)-Neutron Travel Program. The present work was financially supported by the "High Entropy Materials Center" from the Featured Areas Research Center Program within the framework of the Higher Education Sprout Project by the Ministry of Education (MOE) in Taiwan. The present work was supported by the Higher Education Sprout Project of the National Yang Ming Chiao Tung University and the Ministry of Education (MOE), Taiwan. The current work is supported by NSTC T-Star Center Project: Future Semiconductor Technology Research Center under NSTC 114-2634-F-A49-001-. The present work is supported by Center for the Advanced Semiconductor Technology Research under Higher Education Sprout Project of Ministry of Education, Taiwan. Mao-Yuan Luo thanks the support of both the "Overseas Project for Post Graduate Research" from the National Science and Technology Council (NSTC) under grant NSTC 113-2917-I-A49-011 and the Higher Education Sprout Project of the National Yang Ming Chiao Tung University. P.K.L. very much appreciates the support from (1) the National Science Foundation (DMR-1611180, 1809640, and 2226508) and (2) the US Army Research Office (FA9550-23-1-0503, W911NF-13-1-0438, and W911NF-19-2-0049). The authors gratefully acknowledge the use of the "High-performance low temperature and multi-function X-ray diffractometer" belonging to the Core Facility Center of the National Yang Ming Chiao Tung University. The authors gratefully acknowledge the use of facilities and instrumentation at the Instrumentation Center of National Tsing Hua University (High Resolution Transmission Electron Microscope, JEOL JEM-F200). S.S.S. and P.K. acknowledge the MSE departmental lab facility of the Indian Institute of Technology Kanpur. S.Y.L. was supported by a National Research Foundation (NRF) grant funded by the Korean government (2021R1A4A1031494, 2023R1A2C2007190, RS-2024-00398068, and RS-202-NR077179). A portion of the current research used resources at the SNS, a DOE Office of Science User Facility operated by the Oak Ridge National Laboratory. Additional TEM work was performed, in part, at the Center for Integrated Nanotechnologies, an Office of Science User Facility operated for the U.S. Department of Energy (DOE) Office of Science. Los Alamos National Laboratory, an affirmative action equal opportunity employer, is managed by the Triad National Security, LLC, for the U.S. Department of Energy's NNSA, under contract 89233218CNA000001.