Hostname: page-component-745bb68f8f-kw2vx Total loading time: 0 Render date: 2025-02-10T12:25:29.979Z Has data issue: false hasContentIssue false
  • English
  • Français

Structure and Mechanical Properties of the Engine Valves with Intermetallic Disk

Published online by Cambridge University Press:  10 February 2011

B. N. Kodess ,
G. P. Teterin ,
L. A. Kommel  and
V. K. Ovcharov
B. N. Kodess
Affiliation:
ICS*VNIIMS, 46 Ozernaya St., Moscow, 119361
G. P. Teterin
Affiliation:
MSOU, 22 P. Korchagina St., Moscow 129805, Russia
L. A. Kommel
Affiliation:
TTU, 5 Enitajate, Tallin EE-0026, Estonia
V. K. Ovcharov
Affiliation:
VNIIMS, 46 Ozernaya St., Moscow, 119361;
Get access

Abstract

The bimetallic valves were produced using a new technique, IFFM (Impact Fused-Forging Modeling). Distribution of the alloy components as well as phase composition across the valve section was obtained by means of energy-dispersive analysis and X-ray diffraction. Optic and electron microscopy research of macro- and microstructure was conducted. High quality of the joint between the sintermetallic (TiAl) head and the titanium (VT-9 and VT-6 alloys) stem was demonstrated. As a result of the contact of the stem with the semi-solid intermetallics at the temperature above Tc, a polymorphous transformation was obtained in the upper part of the Ti-based stem. The globular microstructure in the intermetallic head in the area near to the joint of the two alloys was achieved. The results proved that the process allows production of complex shaped parts based on advanced alloys of high quality, featuring extra wear-resistance and strength.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 552: Symposium KK – High-Temperature Ordered Intermetallic Alloys VIII , 1998 , KK8.37.1
Copyright
Copyright © Materials Research Society 1999

Access options

Get access to the full version of this content by using one of the access options below. (Log in options will check for institutional or personal access. Content may require purchase if you do not have access.)

References

REFERENCES

1. Shen, T.-S., J. Am. Ceram. Soc., 77(9), 2345 (1994).Google Scholar
2. Paransky, E., Gutmanas, E.Y., Gotman, J. and Koczak, M., J. Metal. and Mater. A, 27A, 2130 (1996).Google Scholar
3. Tianyi Cheng, McLean, M., J. Mater. Sci, 32, 6255 (1996).Google Scholar
4. Larsen, D.E., Wheeler, D.A. and London, B., in Recent Developments in Investment Cast Processing, Properties and Applications for Gamma Titanium Aluminides Alloy (Proc. of the Seventh World Titanium Conf., June 1992, San Diego, California, 1992) pp. 1487–1493.Google Scholar
5. Jones, P.E., Porter, W.J., Eylon, D. and Golvin, G., in Abstract Booklet of the 124th TMS Annual Meeting and Exhibition, Feb. 1995, Las Vegas, Nevada 1995) p. 15.Google Scholar
6. Hurta, S., Clemens, H., Frommeyer, G., Nikolai, H. -P. and Sabum, H., in Valves of Intermetallic g-TiAl Base Alloys: Processing and Properties, (Abstract Booklet of The Eighth World Conference on Titanium, Birmingham 1995), p. S 3a/3; Jones, P.E., Eylon, D. and Golvin, G., ibid. p. S 6a/2.Google Scholar
7. Kodess, B.N., Medetbekov, M.T., The Distribution of Phases, Composition and Properties of Ti-Al Alloys after various perturbation Action), VNIIMS, GosStandart of Russia 14.05.96, Depozit VINITI No. 3137-B96, 1996), pp. 45 Google Scholar
8. Teterin, G.P., Volkov, A.E., Kuznechn.-Shtampov. Proizvodstvo (Forging and Stamping Production. Material Working by Pressure), 7, 2 (1994).Google Scholar
9. Volkov, A.E., Teterin, G.P., Vestnik Mashinostr., 12, 43 (1995)Google Scholar
10. Kodess, B.N., presented at the 1995 MRS Fall Meeting, Boston, MA, C222; G. G. Sadikov, L.A.Butman, B.N. Kodess, ibid. 1993, F101 (unpublished).Google Scholar
11. Teterin, G.P., Kodess, B.N., Zivotov, S.M. in Theory, Technology and Equipment of Stamping Production, edited by Sergeev, A.S., Tula, 1996) pp. 134–138.Google Scholar
12. Volkov, A., RU Patent No. 2009011 (4 February 1992).Google Scholar
13. Kommel, L.A., Teterin, G.P., Kodess, B.N., Kuznechno-Shtamp. Proizv. (Forging and Stamping Production. Material Working by Pressure) 7, 29 (1998).Google Scholar
14. Panin, V.I., Burakov, Y.V., Chainov, N.D., Lukin, D.B., Volkov, A.E., presented at the 1997 SETC, Yokogama, Okt. 3, Japan, Presentations No. 123 (unpublished).Google Scholar