Electron backscattered pattern analysis has been usedto identify the changes in microtexture of a zone annealed rod of mechanically alloyed nickel MA 6000 between the initial and steady state growth of the coarse longitudinal grains. As the secondary recrystallisation interface travels further down the specimen, the <110> fibre texture becomes increasingly ‘tight’, and the grain size and the proportion of ‘special’ boundaries both increase. A development of the Gladman model of secondary recrystallisation is presented which accountsfor this behaviour.
MST/3037
Get full access to this article
View all access options for this article.
References
1.
TEKINA., MUJAHIDM., MARTINJ. W., SHAWS. W. K., McCOLVING. M., and EwanI. C..: in ‘Superalloys 1992’, (ed. AntolovichS. D. et al.), 457–466; 1992, Warrendale, PA, TMS.
2.
RAGHAVANM., STEEDSJ. W., and PETROVIC-LUTONR. A.: Metall. Trans.,1982, 13A, 953.
3.
MARSHJ. M. and MARTINJ. W.: Mater. Sci. Technol.,1991, 7, (2), 183–188.
4.
SUTTONA. P. and BALLUFFER. W.Acta Metall., 1987, 35, 2177.
5.
FURLEYJ. and RANDLEv.: Mater. Sci. TechnoL, 1991, 7, (1), 12–19.
6.
SMITHC. S.: Trans. AIME, 1948, 175, 15.
7.
GLADMANT.: Proc. R. Soc., 1966, A94, 298.
8.
HELLMANP. and HILLERTM.: Scand. J. Metall.,1975, 4, 211.
9.
MIODOWNIKM. A., MARTINJ. W., and LITTLEE. A.: Mater. Sci. Technol.,1993, 10, (2), 102–109.
10.
WORNERC. H. and HAZZLEDINEP. M.: JOM, 1992, 44, 16.
