Hostname: page-component-77c89778f8-rkxrd Total loading time: 0 Render date: 2024-07-18T17:26:57.541Z Has data issue: false hasContentIssue false

Improvement of Thermal Fatigue Resistance of A Wrought Nickel-Base Superalloy by Laserglaze

Published online by Cambridge University Press:  25 February 2011

Zhao Qi
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang, Liaoning, China
Ge Yunlong
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang, Liaoning, China
Hu Zhuangqi
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang, Liaoning, China
Jiang Ming
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang, Liaoning, China
Shih Changshu
Affiliation:
Institute of Metal Research, Academia Sinica, Shenyang, Liaoning, China
Get access

Abstract

Laserglaze with appropriate post heat treatment has improved the thermal fatigue resistance of a wrought nickel-base superalloy. It was found that laserglaze was able to eliminate the blocky MC phase, refine grains and form a very interesting microstructure of serrated grain boundaries. Careful selection of post heat treatment markedly increased the strength in the laser irradiated region. The initiation and propagation of thermal fatigue cracks were suppressed by this novel microstructure.

Type
Research Article
Copyright
Copyright © Materials Research Society 1986

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] Breinan, E.M., Physics Today, No. 11, 29 (1976) 44.Google Scholar
[2] Kear, B.H., Breinan, E.M., Greenwald, L.E., Metals Technology, No. 4, 6 (1979) 121.Google Scholar
[3] Mordike, E.L., Bergmann, H.W., in “Rapidly Solidified Amorphous and Crystalline Alloys” ed. by Kear, B.H., Giessen, B.C., Cohen, M., Boston, MA, USA (1981) 463.Google Scholar
[4] Strutt, P.R., Lewis, B.C., Kear, B.H., in “Rapidly Solidified Amorphous and Crystalline Alloys” ed. by Kear, B.H., Giessen, B.C., Cohen, M., Boston, MA, USA (1981) 485.Google Scholar
[5] Breinan, E.M., in “Proceedings of the International Conference on Rapid Solidification Processing,” Reston, VA, USA (1977) 87.Google Scholar
[6] Snow, D.B., in “Superalloy 1980, Proceedings of the Fourth International Symposium of Superalloys, Seven Springs, PA, USA (1980) 189.Google Scholar
[7] Yunlong, F.G., Zhuangqi, H., Wei, G. and Changhso, S., Mat. Res. Soc. Symp. Proc. 28 (1984) 99.Google Scholar