|
|
HIGH VOLTAGE TEM OBSERVATION OF THERMOELASTIC MARTENSITIC TRANSFORMATION IN A Cu-Zn-Al ALLOY |
by DENG Yongrui (Beijing University of Iron and Steel Technology); ANSELL; G. S.. (Rensselaer Polytechnic Institute; USA) (Manuscript received 3 December; 1985; revised manuscript 28 May; 1985) |
|
Cite this article:
by DENG Yongrui (Beijing University of Iron and Steel Technology); ANSELL; G. S.. (Rensselaer Polytechnic Institute; USA) (Manuscript received 3 December; 1985; revised manuscript 28 May; 1985). HIGH VOLTAGE TEM OBSERVATION OF THERMOELASTIC MARTENSITIC TRANSFORMATION IN A Cu-Zn-Al ALLOY. Acta Metall Sin, 1987, 23(6): 464-469.
|
Abstract The martensitic transformation in Cu-29%Zn-3%Al alloy occurs thermoelastically. High voltage TEM observation shows that the parent phase belongs to DO_3 and martensite belongs to 18R in structure. Fine structures of tiny packages with a traverse size of~10nm in martensite plates have been seen at the thicker part of the sample. The boundary between β' and M at the thinner part was flat or sawtooth-like composed parallel dislocation lines: Although the reversibility of the transformation in TEM samples has been observed under an optical microscope, only the β'→M transformation observed on TEM. Probably, the thickness of thiner part of the foil is too small to store enough elastic energy which is the driving force of the reverse transformation.
|
Received: 18 June 1987
|
1 武沢和羲,佐藤博保,阿部良贤,佐藤进一.日本金属学会志,1979;43:235 2 Balcelo G, Rapacioli R, Ahlers M. Scr Metall, 1978; 12: 1069 3 Takezawa K, Izumi T, Chiba H, Sato S. In: ICOMAT-82, Lelaey L ed., International Conference on Martensitic Transformations, at Leuven August 1982, Belgium, 1982: 813 4 Chakravorty S, Wayman CM. Acta Metall, 1977; 25: 989 5 Tadaki T, Katsuki K, Shimizu K. Symposium on New Aspects of Martensitic Transformations, JIM, Kobe, Japan. 1976: 187 6 Lovey F C. In: ICOMAT-82, Lelaey L ed., International. Conference on Martensitic Transformations. at Leuven August 1982, Belgium, 1982: 585 7 Deng Y. Doctoral Thesis, 1984, Rensselaer Polytechnic Institute, USA |
No Suggested Reading articles found! |
|
|
Viewed |
|
|
|
Full text
|
|
|
|
|
Abstract
|
|
|
|
|
Cited |
|
|
|
|
|
Shared |
|
|
|
|
|
Discussed |
|
|
|
|