A successive grinding technique was used to examine the changes in microstructure generated by fretting of a 1C–1·5 Cr steel. The findings indicated that the white phase was precipitation hardened austenite and that it grew laterally by coalescence of initial areas of a few micrometres. Frequently, very small modifications of the initial microstructure were found near the white phase. This is explained by the small quantity of heat generated and its rapid dissipation in the steel. Similar carbide precipitates to those in the white phase were found in areas of residual austenite in rapidly solidified water atomised particles of the same type of steel.
MST/3151
Get full access to this article
View all access options for this article.
References
1.
VILNTINJ. and VODOPIVECF.: Kovine, zlitine, tehnol., 1993, 27, 185–190.
2.
VILNTINJ., KALINM., PODGORNIKB., and VODOPIVECF.: submitted to Tribotest.
3.
SPROLESE. S. and DUQUETTED. J.: Wear, 1978, 47, 387–396.
4.
KOVERLEVSKIV. V.: Wear, 1981, 67, 271–285.
5.
ATTIAM. H. and KOP. L.: Wear, 1986, 111, 363–376.
6.
KENNEDYF. E.JR.,: Wear, 1984, 100, 453–476.
7.
GRIFFITHSB. J.: J. Tribology, April 1985, 107, 165–171.
8.
DOBROMIRSKIJ. and SMITHI. O.: Wear, 1987, 111, 347–357.
9.
USAMIH., FLTNABASHIK., and NAKAMURAT.: in PTOC. Turotrib 1993’, (ed. KozmaM., Budapest, Hungary, August—September 1993, Hungarian Chemical Society, Vol. 3, 440-445.
10.
BERGERG.: ‘La dilatometrie differentielle appliquée a l'étude des aciers’; 1965, Paris, Dunod.
11.
B. SUKRAX§to: ‘Properties of metal powder manufactured by water atomisation’, MSc thesis, University of Ljubljana, 1993.
