caa a22 4500 46322972X CHVBK 20180405153238.0 cr unu---uuuuu 170326e20070701xx s 000 0 eng 10.1007/s10853-006-0963-1 doi (NATIONALLICENCE)springer-10.1007/s10853-006-0963-1 Effect of strain rate and environment on the mechanical properties of the Ni-19Si-3Nb-0.15B-0.1C intermetallic alloy at high temperatures [Elektronische Daten] [C. Fu, J. Jang, L. Chang, T. Lin, C. Kuo] The effect of strain rate and environment on the mechanical behavior at different temperatures of the Ni-19Si-3Nb-0.15B-0.1C alloy is investigated by atmosphere-controlled tensile testing under various conditions at different strain rates and different temperatures). The results reveal that the Ni-19Si-3Nb-0.15B-0.1C alloy exhibits ductile mechanical behavior (UTS∼1250MPa, ε~14%) at temperatures below 873K under different atmosphere conditions. However, the alloy without boron and carbon addition shows ductile mechanical behavior only when the sample is tested in vacuum. This indicates that the microalloying of boron and carbon does overcome the environmental embrittlement from water vapor at test temperatures below 873K for the Ni-19Si-3Nb base alloy. However, the boron and carbon doped alloy still suffers from embrittlement associated with oxygen at a medium high temperature (i.e. 973K). In parallel, both of the ultimate tensile strength and elongation exhibit quite insensitive response with respect to the loading strain rate when tests are held at temperatures below 873K. However, the ultimate tensile strength exhibits high dependence on the strain rate in air at temperatures above 873K, decreasing the ultimate tensile strength with decreasing strain rate. Springer Science+Business Media, LLC, 2007 Fu C. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut Jang J. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut Chang L. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut Lin T. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut Kuo C. Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5327-5334 0022-2461 42:14<5327 2007 42 10853 https://doi.org/10.1007/s10853-006-0963-1 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-006-0963-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Fu C. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut NATIONALLICENCE 700 1- Jang J. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut NATIONALLICENCE 700 1- Chang L. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut NATIONALLICENCE 700 1- Lin T. Department of Materials Science & Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut NATIONALLICENCE 700 1- Kuo C. Department of Mechanical and Automation Engineering, I-Shou University, Kaohsiung, Taiwan, ROC aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/14(2007-07-01), 5327-5334 0022-2461 42:14<5327 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer