Localized deformation behavior of W-80 vol%Cu composite at room temperature

Abstract

Plastic strain of about 10% was added to the W-80 vol%Cu composite at room-temperature using a three-point bend testing machine. Positions of the specific W-particles were measured before and after deformation using high-magnification SEM photographs. Then the localized deformation behavior of the composite was investigated by comparing the measured and the calculated positions of these specific W-particles after deformation. Results are summarized as follow. (1) In the region without pore, heterogeneous deformation did not occur. (2) In the region near the large pore, heterogeneous deformation occurred as expected. © 2007 The Japan Institute of Metals.