Microsegregation and Solidification Shrinkage of Copper-Lead Base Alloys

Table 7

Cu-Pb Alloy
𝑉^Mono𝐿=0.1092(cm^3g^−1)	[6]
𝑉^Cu−Pb𝐿−Mono=0.099(cm^3g^−1)	[6]
𝑉^Cu−Mono𝑆=0.1183(cm^3g^−1)	[11]
𝑉^𝐿0=0.123(cm^3g^−1)	[6]
𝑉^Cu0=𝑉^𝑆0=0.119(cm^3g^−1)	[11]
𝛼^Cu−Pb𝐿=36.14×10^−6(K^−1)	[6]
𝛼^Cu−Pb𝑆=𝛼^Cu𝑆=20.3×10^−6(K^−1)	[12]
𝛽^Mono=0.187	(Expansion) [6]
𝐶𝐿=−0.287𝑇+312.4(wt.%)	[9]
𝐶^Mono𝐿=−0.133𝑇+213(wt.%)	[9]
𝐶𝑜=5(wt.%)
𝑇𝑜=1340(K)	Calculated
𝑇𝑀=1357.87(K)	[9]
TMono=1228(K)	[9]
𝑉^𝐿Cu−Pb=2.17×10^−6𝐶^2Pb−4.605
×10^−4𝐶Pb+0.1253(cm^3g^−1)	[6]
Cu-Sn-Pb Alloy
𝑉^𝐿0=0.124(cm^3g^−1)	[6]
𝑉^𝑆0=0.118(cm^3g^−1)	[11]
𝐾Sn=𝐶𝑆𝐶𝐿=0.368	[9]
𝛼^Cu−Sn−Pb𝐿=26.6×10^−6(K^−1)	Experimental
𝛼^Cu−Sn−Pb𝑆=18.5×10^−6(K^−1)	[12]
𝐶^Sn𝑜=5.2(wt.%)
𝐶^Pb𝑜=4.7(wt.%)
𝑇𝑀=1357.87(K)	[9]
𝑇𝑜=1293(K)	Calculated
𝑉^𝐿Cu−Pb−Sn=2.17×10^−6𝐶^2Pb−4.605
×10^−4𝐶Pb+1.1810×10^−4𝐶Sn+0.1253(cm^3g^−1)	[6]
𝛽^Cu−Sn−Pb=2.45×10^−4𝑇−0.2042	Calculated
Cu-Sn-Zn-Pb Alloy
𝑉^𝐿0=0.126(cm^3g^−1)	[6]
𝑉^𝑆0≃0.1187(cm^3g^−1)	Calculated
𝐾Sn=𝐶𝑆𝐶𝐿=0.368	[9]
𝛼^Cu−Sn−Pb𝐿=26.6×10^−6(K^−1)	Experimental
𝛼^Cu−Sn−Pb𝑆≃18.5×10^−6(K^−1)	[12]
𝐶𝑜=5(wt.%)
𝑇𝑀=1357.87(K)	[9]
𝑇𝑜=1273(K)	Calculated
𝑉^𝐿Cu−Pb−Sn−𝑍𝑛=2.17×10^−6𝐶^2Pb−4.605
×10^−4𝐶Pb+1.1810×10^−4𝐶Sn+7.6
×10^−4𝐶𝑍𝑛+0.1253(cm^3g^−1)	[6]
𝛽^Cu−Sn−𝑍𝑛−Pb=4.8×10^−4𝑇−0.4072	Calculated