Plasticity Enhancement by Fe-Addition on NiAl Alloy: A Synchrotron X-ray Diffraction Mapping and Molecular Dynamics Simulation Study

Quantum Beam Science

Lin, Tian-Yu¹  Hong, Wei-Jhih³  Jayant, Jain⁴  Fine, Morris E.⁵  Huang, E-Wen⁶  Liaw, Peter K.⁷  Chang, I-Ling⁸  Santodonato, Louis⁹  Lam, Tu-Ngoc^1,10  Su, Chun-Jen^1,11 

[1] Materials Engineering, National Central University, Taoyuan 32001, Taiwan;Author to whom correspondence should be addressed.;Department of Chemical &Department of Materials Science and Engineering, Indian Institute of Technology, New Delhi 110016, India;Department of Materials Science and Engineering, McCormick School of Engineering and Applied Science, Northwestern University, Evanston, IL 60208, USA;Department of Materials Science and Engineering, National Chiao Tung University, 1001 University Road, Hsinchu 30010, Taiwan;Department of Materials Science and Engineering, University of Tennessee, Knoxville, TN 37996, USA;Department of Mechanical Engineering, National Cheng Kung University, 1 University Road, Tainan City 70101, Taiwan;Instrument and Source Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA;Materials and Chemistry Laboratories, Industrial Technology Research Institute, Hsinchu 31057, Taiwan;National Synchrotron Radiation Research Center, Hsinchu 30076, Taiwan

关键词: synchrotron diffraction;    metal;    alloys;    plastic behavior;    microstructure;    molecular dynamics simulation;   

DOI  :  10.3390/qubs2030018

学科分类：电子、光学、磁材料

来源: mdpi

【 摘 要 】

Unalloyed nickel aluminide has important applications but lacks ductility at room temperature. In this study, iron-added nickel aluminide alloys exhibit plasticity enhancement. The nickel aluminide alloys are prepared with different iron contents (0, 0.25, and 1 at%) to study their plasticity. The indentation-induced deformed areas are mapped by the synchrotron X-ray diffraction to compare their plastic zones. A complimentary tight binding calculation and generalized embedded atom method demonstrate how the Fe-addition enhances the plasticity of the iron-added nickel aluminide alloys.

【 授权许可】

CC BY