Morphology evolution of the interface between different mushy zones of a Sn-Ni peritectic alloy in a temperature gradient

2016 ◽  
Vol 182 ◽  
pp. 110-113 ◽  
Author(s):  
Peng Peng ◽  
XinZhong Li ◽  
JianGong Li
Keyword(s):  
Temperature Gradient ◽  
Morphology Evolution ◽  
Peritectic Alloy

Microstructure Formation during Unidirectionally Solidified Pb-Bi-Sn Tenary Quasi-Peritectic Alloy

2011 ◽  
Vol 189-193 ◽  
pp. 3799-3803
Author(s):  
Xiao Wu Hu ◽  
Hong Yan
Keyword(s):  
Solid Solution ◽  
Temperature Gradient ◽  
Growth Velocity ◽  
Solution Phase ◽  
Solid Solution Phase ◽  
Directionally Solidified ◽  
Microstructure Formation ◽  
Peritectic Alloy ◽  
Constant Temperature Gradient ◽  
Α Phase

In order to investigate the microstructure formation resulted from quasi-peritectic reaction in Pb-Bi-Sn ternary alloy, specimens were directionally solidified with a constant temperature gradient (G=18 K/mm) and the growth velocities ranging from 0.5 μm/s to 10 μm/s. Experimental results indicated that a microstructure, which is composed of the residual primary α phase (Pb-rich solid solution), peritectic β-(Pb7Bi3) phase and Sn-rich solid solution phase was observed. Transition from primary α-cell to primary α-dendrite took place with the increasing growth velocity. The rod-like eutectic was observed in the inter-cellular region under low growth velocity. Detail analyses were adopted to identify the phases and determine the phase compositions, respectively.

Secondary dendrite arm migration caused by temperature gradient zone melting in the directionally solidified Sn–40 at.% Mn peritectic alloy

2013 ◽  
Vol 28 (9) ◽  
pp. 1196-1202 ◽  
Author(s):  
Peng Peng ◽  
Xinzhong Li ◽  
Dongmei Liu ◽  
Yanqing Su ◽  
Jingjie Guo ◽  
...  
Keyword(s):  
Temperature Gradient ◽  
Zone Melting ◽  
Directionally Solidified ◽  
Peritectic Alloy ◽  
Gradient Zone ◽  
Image Position

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