Metallic composites with specifically defined properties may be produced by various techniques. Thus, for example, high temperature materials can be covered by MCrAIY coatings by means of low pressure plasma spraying. These coatings offer considerable advantages with regard to high temperature oxidation resistance and generally lead to a longer useful life of the coated components. A further possibility to improve the properties of such composites is a post-treatment by hot isostatic pressing (hipping). The hipping process increases the density of the coatings and has so far proved itself in improving the mechanical properties of components made of nickel and cobalt base superalloys.
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References
1.
KAISERH.: ‘HeiBisostatisches Pressen — eine neue Technologie’, Thyssen GieBerei AG, FeinguBwerk Bochum.
2.
SEILSTORFERH.: ‘10 Jahre Hei13-Isostat-PreB (HIP)-Technik’, Firmenschrift der Firma Seilstorfer GmbH & Co. anläBlich des 10-jährigen Bestehens.
3.
BARTOSI. L. and mAntuaP. S.: Proc. 3rd Int. Symp. on ‘Metallurgy and manufacture’, Seven Springs, USA, 1976, Metallurgical Society of AIME, 495–508.
4.
wummaR.: Proc. Int. Conf. on Isostatic pressing’, Loughborough University of Technology, 1978, 30.20-30.32.
5.
FLOYDP. H., WALLACEW., and IMMARIGEONJ.-P.: in ‘Heat treatment ’81’, 97–102; 1983, London, The Metals Society.
6.
BURMANC. and ERICSSONT.: Proc. Symp. on ‘High temperature protective coatings’, Atlanta, GA, 1983, Metallurgical Society of AIME, 51–59.
7.
NEDERVEENH. B. VAN, VERBURGHM. B., and HOUBENJ. M.: Proc. 9th Int. Conf. on ‘Thermal spraying’, the Hague, May1980, paper 51.
8.
NIENABERS.: ‘Beitrag zur Beurteilung heiBisostatisch nachverdichteter Schichtverbunde’, Diplomarbeit, FH Osnabruck, Fachbereich Werkstofftechnik in Zusammenarbeit mit dem Lehrstuhl fiir Werkstofftechnologie der Universität Dortmund, 1986.
9.
STEFFENSM. D., DAMMERR., and FISCHERU.: Z. Werkstofftech., in press.
