Solidification behaviour of undercooled equiatomic FeCuNi alloy

2020 ◽  
Vol 815 ◽  
pp. 152334
Author(s):  
M.R. Rahul ◽  
Gandham Phanikumar
Keyword(s):  
Solidification Behaviour

Phase equillibria and solidification behaviour in the vanillin–p-anisidine system

2008 ◽  
Vol 311 (1) ◽  
pp. 118-122 ◽  
Author(s):  
N.B. Singh ◽  
S.S. Das ◽  
Preeti Gupta ◽  
M.K. Dwivedi
Keyword(s):  
Solidification Behaviour

Solidification Behaviour of 357 Al-Alloy under Intensive Forced Convection

2006 ◽  
Vol 519-521 ◽  
pp. 1747-1752 ◽  
Author(s):  
Michael Hitchcock ◽  
Zhong Yun Fan
Keyword(s):  
Forced Convection ◽  
Ostwald Ripening ◽  
Particle Growth ◽  
Primary Phase ◽  
Al Alloy ◽  
Growth Behaviour ◽  
Entire Volume ◽  
Solidification Behaviour ◽  
Primary Particles ◽  
Fast Growth Rate

Solidification behaviour of 357 Al-alloy under intensive forced convection in the rheo-die-casting (RDC) process, was investigated experimentally to understand the effects of the intensity of forced convection and shearing time on the nucleation and growth behaviour. It was found that under intensive forced convection, heterogeneous nucleation occurred continuously throughout the entire volume of the solidifying melt. All the nuclei could survive due to the uniform temperature and composition fields created by the forced convection. This has been named as ‘effective and continuous nucleation’. It is also found that the nuclei grow spherically with an extremely fast growth rate. This makes the primary solidification essentially a slow coarsening process, in which Ostwald ripening takes place by dissolution of the smaller particles. In addition, it was found that intensive forced convection suppresses partially the formation of the primary phase, promote nucleation of the primary particles, and hinders the particle growth.

Effect of Rotating Magnetic Field on Microstructure Evolution of Pb-Bi Alloys

2011 ◽  
Vol 311-313 ◽  
pp. 600-608
Author(s):  
Zhao Chen ◽  
Xiao Li Wen ◽  
Chang Le Chen
Keyword(s):  
Magnetic Field ◽  
Fluid Flow ◽  
Microstructure Evolution ◽  
Solidification Process ◽  
Nucleation And Growth ◽  
Primary Phase ◽  
Rotating Magnetic Field ◽  
Growth Behaviour ◽  
Solidification Behaviour ◽  
40 Hz

Solidification behaviour of Pb-Bi alloys under rotating magnetic field (RMF) was investigated experimentally to understand the effect of the frequency of RMF on the nucleation and growth behaviour. It was found that, as the increase of the rotating frequency, the grains are fragmented and refined gradually until a transition from columnar to equiaxed microstructures happens at a rotating frequency of 40 Hz. Moreover, the Bi concentration of the primary phase decreases and macrosegregation is eliminated effectively with RMF. These are due to the effect of RMF on the nucleation, growth and fluid flow in the solidification process.

Sign in / Sign up

Export Citation Format

Share Document