期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 614, 期 -, 页码 226-233出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2014.06.106
关键词
Intermetallics; Recrystallization; Electron backscatter diffraction (EBSD); X-ray diffraction (XRD)
资金
- Polish National Center of Science [2013/09/N/ST8/04366, UMO-2011/01/B/ST8/07257]
In the present paper, results of EBSD and X-ray diffraction study on the recrystallization of a cold rolled Ni3Al based intermetallic alloy, are shown. The investigated Zr- and B-doped Ni3Al based intermetallic alloy was subjected to the cold rolling process to 50% of a thickness reduction followed by an 1 h annealing at the 700-1100 degrees C temperature range. The EBSD grain orientation spread and grain boundary character distribution analysis allows calculating changes of the fraction recrystallized. A comparison of XRD results and changes of mechanical properties after annealing of the deformed material indicates a key role of the long range order (LRO). The best combination of the strength and ductility is exhibited by the material annealed for 1 h at 800 degrees C (TYS similar to 830 MPa, UTS similar to 1670 MPa and elongation close to 25%) which is characterized by a few percent of the fraction recrystallized while its LRO is restored to a significant degree (0.75). (C) 2014 Elsevier B.V. All rights reserved.
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