Hostname: page-component-586b7cd67f-t7fkt Total loading time: 0 Render date: 2024-11-28T07:10:42.076Z Has data issue: false hasContentIssue false
  • English
  • Français

Mapping Residual-Stress Distributions in a Laser-Peened Vit-105 Bulk-Metallic Glass Using the Focused-Ion-Beam Micro-Slitting Method

Published online by Cambridge University Press:  11 March 2011

B. Winiarski ,
G. Wang ,
X. Xie ,
Y. Cao ,
Y. Shin ,
P. K. Liaw  and
P. J. Withers
B. Winiarski
Affiliation:
School of Materials, The University of Manchester, Grosvenor St., Manchester, M1 7HS, UK
G. Wang
Affiliation:
Dept. of Materials Sci. & Eng., The University of Tennessee, Knoxville, TN 37996, USA
X. Xie
Affiliation:
Dept. of Materials Sci. & Eng., The University of Tennessee, Knoxville, TN 37996, USA
Y. Cao
Affiliation:
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
Y. Shin
Affiliation:
School of Mechanical Engineering, Purdue University, West Lafayette, IN 47907, USA
P. K. Liaw
Affiliation:
Dept. of Materials Sci. & Eng., The University of Tennessee, Knoxville, TN 37996, USA
P. J. Withers
Affiliation:
School of Materials, The University of Manchester, Grosvenor St., Manchester, M1 7HS, UK
Get access

Abstract

Measuring residual-stresses at the micron scale in glassy materials imposes experimental challenges, particularly when using diffraction, or other conventional laboratory methods, e.g., optical non-contact methods, grid methods, etc. In this short paper, a technique for mapping residual-stress profiles in amorphous materials with high spatial definition is used to measure residual-stresses in a laser-peened and fatigued bulk-metallic glass - Vit-105. The method involves local deposition of nano Pt dots patterns on the mapped region of the specimen and milling of a series of micro-slots of size 15 × 2 × 0.4 μm3 using the focused ion beam of a dual beam Field Emission Gun Scanning Electron Microscope / Focused Ion Gun (FEGSEM/FIB) instrument. The deformation fields in the vicinity of slots are reconstructed by the digital image correlation analyses (DICA) of FEGSEM images recorded during milling. The residual-stresses are inferred by fitting a reference displacement field obtained from finite-element analyses (FEA) with the recorded displacement field. In this way, residual-stress distributions have been characterized as a function of the distance from the laser-peened surface to a depth of 1,200 microns with a spatial resolution of 30 μm. The influence of fatigue loading on the compressive residual-stresses spatial distribution is studied and discussed. It was found that the fatigue loading significantly changes the compressive residual-stress spatial distribution in the laser-peened layer.

Keywords

shock loadingion-beam processingscanning electron microscopy (SEM)
Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 1300: Symposium U – Bulk Metallic Glasses and their Applications , 2011 , mrsf10-1300-u09-10
Copyright
Copyright © Materials Research Society 2011

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. Johnson, W.L., Bulk glass-forming metallic alloys: Science and technology . MRS Bulletin, 1999. 24(10): p. 42–56.Google Scholar
2. Inoue, A., Yoshii, I., Kimura, H., Okumura, K. and Kurosaki, J., Enhanced shot peening effect for steels by using Fe-based glassy alloy shots . Materials Transactions, 2003. 44(11): p. 2391–2395.Google Scholar
3. Fukushige, T., Hata, S., and Shimokohbe, A., A MEMS conical spring actuator array . Journal of Microelectromechanical Systems, 2005. 14(2): p. 243–253.Google Scholar
4. Sun, D., Wang, S., Hata, S., Sakurai, J. and Shimokohbe, A., Cylindrical ultrasonic linear microactuator based on quasi-traveling wave propagation on a thin film metallic glass pipe supported by a piezoelectric ceramic tube . Sensors and Actuators A: Physical, 2009. 156(2): p. 359–365.Google Scholar
5. Das, J., Tang, M.B., Kim, K.B., Theissmann, R., Baier, F., Wang, W.H. and Eckert, J., “Work-hardenable” ductile bulk metallic glass . Physical Review Letters, 2005. 94(20).Google Scholar
6. Loffler, J.F., Bulk metallic glasses . Intermetallics, 2003. 11(6): p. 529–540.Google Scholar
7. Zhang, Y., Wang, W.H., and Greer, A.L., Making metallic glasses plastic by control of residual-stress . Nature Materials, 2006. 5(11): p. 857–860.Google Scholar
8. Berthe, L., Fabbro, R., Peyre, P., Tollier, L. and Bartnicki, E., Shock Waves from A Water-confined Laser-generated Plasma . Journal of Applied Physics, 1997. 82(6): p. 2826–2832.Google Scholar
9. Montross, C.S., Tao, W., Ye, L., Clark, G. and Yiu-Wing, M., Laser shock processing and its effects on microstructure and properties of metal alloys: a review . International Journal of Fatigue, 2002. 24: p. 1021–1036.Google Scholar
10. Winiarski, B., Langford, R.M., Tian, J., Yokoyama, Y., Liaw, P.K. and Withers, P.J., Mapping residual-stress distributions at the micron scale in amorphous materials . Metallurgical and Materials Transactions A, 2009. 41(7): p. 1743–1751.Google Scholar
11. Poulsen, H.F., Wert, J.A., Neuefeind, J., Honkimaki, V. and Daymond, M., Measuring strain distributions in amorphous materials . Nature Materials, 2005. 4(1): p. 33–36.Google Scholar
12. Das, J., Bostrom, M., Mattern, N., Kvick, A., Yavari, A.R., Greer, A.L. and Eckert, J., Plasticity in bulk metallic glasses investigated via the strain distribution . Physical Review B, 2007. 76(9).Google Scholar
13. Aydiner, C.C., Ustundag, E., Prime, M.B. and Peker, A., Modeling and measurement of residual-stresses in a bulk metallic glass plate . Journal Of Non-Crystalline Solids, 2003. 316(1): p. 82–95.Google Scholar
14. Winiarski, B. and Withers, P.J., Mapping residual-stress profiles at the micron scale using FIB micro-hole drilling . Applied Mechanics and Materials, 2010. 24-25: p. 267–272.Google Scholar