TY - JOUR
T1 - Primary cellular/dendritic spacing selection of Al-4.95% Zn alloy under near-rapid directional solidification condition
AU - Jian, Feng
AU - Tao, Li
AU - Xin, Lin
AU - Weidong, Huang
AU - Yaohe, Zhou
PY - 1999/9
Y1 - 1999/9
N2 - Al-4.95% Zn alloy is directionally solidified in a modified Bridgman apparatus with higher temperature gradient to investigate response of cellular/dendritic microstructures and primary spacing to the variation of growth velocity under near-rapid directional solidification condition. The results show that, with increasing growth rate, there exists a transition from dendrite to fine cell and a wide distribution range in primary cellular/dendritic spacing at the given temperature gradient. The maximum, γmax, minimum, γmin, and average primary spacing, γ̄, as functions of growth velocity, v, can be given by γmax = 12 340 v-0.8353, γmin = 2953.7 v-0.7717, γ̄ = 7820.3 v-0.8333, respectively.
AB - Al-4.95% Zn alloy is directionally solidified in a modified Bridgman apparatus with higher temperature gradient to investigate response of cellular/dendritic microstructures and primary spacing to the variation of growth velocity under near-rapid directional solidification condition. The results show that, with increasing growth rate, there exists a transition from dendrite to fine cell and a wide distribution range in primary cellular/dendritic spacing at the given temperature gradient. The maximum, γmax, minimum, γmin, and average primary spacing, γ̄, as functions of growth velocity, v, can be given by γmax = 12 340 v-0.8353, γmin = 2953.7 v-0.7717, γ̄ = 7820.3 v-0.8333, respectively.
UR - http://www.scopus.com/inward/record.url?scp=0033189356&partnerID=8YFLogxK
M3 - 文章
AN - SCOPUS:0033189356
SN - 1003-6326
VL - 9
SP - 468
EP - 471
JO - Transactions of Nonferrous Metals Society of China (English Edition)
JF - Transactions of Nonferrous Metals Society of China (English Edition)
IS - 3
ER -