GROWTH OF THERMOELASTIC MARTENSITE

Acta Metall Sin

1990, Vol. 26

Issue (5): 70-72 DOI:

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GROWTH OF THERMOELASTIC MARTENSITE

DENG Yongrui;G. S. ANSELL University of Science and Technology Beijing Colorado School of Mines; Golden; CO 80401; USA

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DENG Yongrui;G. S. ANSELL University of Science and Technology Beijing Colorado School of Mines; Golden; CO 80401; USA. GROWTH OF THERMOELASTIC MARTENSITE. Acta Metall Sin, 1990, 26(5): 70-72.

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Abstract The growth of thermoelastic martensit6 in a Cu-29%Zn-3%Al alloy has beeninvestigated experimentally and theoretically. The metallographic observations showed that thegrowth occurred thermoelastically, i. e. reversibly, in the radial direction as well as in thethickening direction. This is not consistent with the theories of Cohen and some others. A modelhas been suggested by the authors to explain the thermoelastidty of the growth. The basic ideais: the elastic strain distribution is highly heterogeneous and the growth is controlled by thelocal elastic strain energy at the growth frontier area. The calculation results from the modelbased on Eshelby's theory are consistent with the observations.

Key words: thermoelasticity martensite Cu-Zn-Al alloy

Received: 18 May 1990

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https://www.ams.org.cn/EN/ OR https://www.ams.org.cn/EN/Y1990/V26/I5/70

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