Unusually large anisotropy of strength has been observed in commercially produced sheets of a duplex stainless steel, Fe–1·5Mn–22Cr–5·5Ni–3Mo–0·15N. The austenite and ferrite phases in this material are highly elongated and possess unusually sharp preferred crystallographic orientations. Both phases are in a recrystallized condition and have almost equal hardnesses. On the basis of the present measurements and a crystallographic analysis of plastic flow it is concluded that the observed anisotropy cannot be due to composite reinforcement in the duplex structure but is rather a result of texture hardening.
MST/214
Get full access to this article
View all access options for this article.
References
1.
SELLARSC. M. and WHITEMANJ. A.: in Proc. Conf. ‘Controlled processing of HSLA steels’, York, 1976.
2.
SELLARSC. M. and WHITEMANJ. A.: Met. Sci.,1979, 13, 187–194.
3.
R. PR1ESTNER, C. C. EARLEY, and RENDALLJ. H.:J. Iron Steel Inst.,1968, 206, 1252–1262.
4.
Le BONA., ROFES-VERNISJ., and ROSSARDC.: Mein. Sci. Rev. Metall., 1975, 57, 577–588.
5.
LeA.ROFES-VERNISBON, J., and ROSSARDC.: Met. Sci.,1975, 9, 36–40.
6.
FOSTERs. R.: PhD thesis, University of Sheffield, 1980.
7.
BARRACLOUGHD. IL: PhD thesis, University of Sheffield, 1974.
8.
SELLARSC. M.: in ‘Hot working and forming processes’, (ed. SellarsC. M. and DaviesG. J.), 3-15; 1980, London, The Metals Society.
9.
GLOVERG. and SELLARSC. M.: Metall. Trans.,1972, 3, 2271.
10.
BARRACLOUGHD. R. and SELLARSC. M.: Met. Sci.,1979, 13, 257–267.
11.
MILLERO.O.: Trans. ASM, 1951, 43, 260–287.
12.
KOZASUI., OUCH1C., SAMPEIT., and OKITAT.: in ‘Microalloying75, 120–135, 1977, New York, Union Carbide Corp.
13.
STDWEH. P.: in ‘Recrystallization of metallic materials’, (ed. HaessnerF., 11; 1978, Stuttgart, Dr. Riederer-Verlag.
14.
RUIBALE., URCOLAJ. J., and FUENTESM.: Met. Technol.,1984, 11, 189–195.
15.
RUIBALE., URCOLAJ. J., and FuENTEsM.: in ‘Perspectives in metallurgical development’, 223–226; 1984, London, The Metals Society.
16.
MORRISONW. B.: J. Iron Steel Inst.,1972, 210, 618–623.
17.
KOZASUI., SHIMIZUT., and KUBOTAH.: Trans. Iron Steel Inst. Jpn, 1971, 11, 367–375.
18.
KORCHYNSKYM. and STUARTH.: in Symp. ‘Low-alloy high-strength steels’, Metallurg, Companies, Düsseldorf, 1970, 17.
19.
ROBERTSW., SANDBERGA., SIWECK1T., and WERLEFORST. in ‘FISLA steels: technology and applications’, 67–84; 1984, Metals Park, Ohio, The American Society for Metals.
