Friction stir processing (FSP) was employed to prepare surface composites (SC) composed of B4C particles in 5024 Al matrix. The processing parameters, such as hole pattern and geometry,and the number of FSP passes, were optimized to obtain uniform powder distribution. The micrographs revealed a homogeneous distribution of the particles with good interfacial bonding. The hardness of the composite was uniform across the processed region which again indicates the uniformity of powder distribution. The modulus of the surface composite was measured using strain gage and showed a significant improvement. This improvement in modulus lies in the load sharing capability from the soft matrix to the hard particles.
Revised: April 30, 2013 |
Published: January 29, 2013
Citation
Komarasamy M., R.S. Mishra, J.A. Baumann, G.J. Grant, and Y. Hovanski. 2013.PROCESSING, MICROSTRUCTURE AND MECHANICAL PROPERTY CORRELATION IN Al-B4C SURFACE COMPOSITE PRODUCED VIA FRICTION STIR PROCESSING. In Friction Stir Welding and Processing VII. TMS 142nd Annual Meeting & Exhibition, March 3-7, 2013, San Antonio, Texas, edited by R Mishra, et al. Hoboken, New Jersey:John Wiley & Sons, Inc.PNNL-SA-91893.doi:10.1002/9781118658345.ch5