Study of Rupture Behavior of 91 Tungsten Alloy
From:http://www.asiatungsten.com Click:4423 Date:2014-12-09
In this paper the micro-crack initiation and crack growth processes as well as fractography in 91
tungsten alloy matearials which have three particle size have been investigated by SEM in-situ tensile test observation.The results indicate that in the No.1
tungsten alloy which particle size is among1~3μm,cracks nucleated,propagated in the interface of particles,in the No.2
tungsten alloy which particle size is among 10~15μm,cracks nucleated,propagated in the interface of particles and matrix,in the No.3
tungsten alloy which particle size is among 30~40
μm,cracks propagated across the particles.