No data available.
Please log in to see this content.
You have no subscription access to this content.
No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.
Evaluation of microstructure and fatigue properties in laser cladding repair of ultrahigh strength AerMet®
1. M. Roth and M. Yanishevskym, “ Failure analysis of aircraft landing gear components,” in Failure Analysis Techniques and Applications ( ASM International, Ohio, 1992).
2.Aerospace Materials Specification (AMS) 2759/2F, Heat Treatment of Low-Alloy Steel Parts Minimum Tensile Strength 220 ksi (1517 MPa) and Higher ( SAE International, Pennsylvania, 2004).
3. S. Sun, B. Brandt, J. Harris, and Y. Durandet, “ The influence of stellite 6 particle size on the inter-track porosity in multi-track cladding,” Surf. Coat. Technol. 201, 998–1005 (2006).
5. T. V. Philip and T. J. McCaffrey, “ Ultrahigh strength steels,” in Handbook of Materials Selection for Engineering Applications, edited by G. T. Murray ( Taylor & Francis, New York, 1997), pp. 149–162.
6. H. K. D. H. Bhadeshia and R. W. K. Honeycombe, Steels Microstructure and Properties, 3rd ed. ( Butterworth-Heinemann, Burlington, 2006).
8. N. J. Petch, “ The cleavage strength of polycrystals,” J. Iron Steel Inst. 174, 25–28 (1953).
9. A. W. Thompson and J. C. Chesnutt, “ Identification of a fracture mode: The tearing topology surface,” Metall. Trans. A 10, 1193–1196 (1979).
10. J. H. Graves, “ Effect of heat treatment on the microstructure and properties of AerMet® 100 steel,” Master's thesis, Worcester Polytecnic Institute, 1994.
Article metrics loading...
The metallurgy and fatigue properties were evaluated for the laser cladding of AerMet® 100 powder on AerMet® 100 substrate. Working with small scale tensile and fatigue samples causes an overextended HAZ due to the constant heating applied on a small thermal mass. The limited heat input causes major processing issues with inter-run porosity observed. The microstructure observed in both the clad and Heat-affected Zone (HAZ) is (1) inhomogeneous and nonuniform and (2) hard and brittle martensitic structure. As a result, the yield strength is reduced by 37%, ultimate tensile strength (UTS) reduced by 13%, elongation reduced by 57%, and the fatigue life is reduced significantly.
Full text loading...
Most read this month