Er对Mg-5Zn-<i>x</i>Er镁合金热裂敏感性的影响

Er对Mg-5Zn-xEr镁合金热裂敏感性的影响

刘耀鸿,王朝辉(

),刘轲,李淑波,杜文博

Effects of Er on Hot Cracking Susceptibility of Mg-5Zn-xEr Magnesium Alloys

Yaohong LIU,Zhaohui WANG(

),Ke LIU,Shubo LI,Wenbo DU

图4. Mg-5Zn-xEr合金热裂敏感性预测

Fig.4. Hot cracking susceptibilities predicted by optimized RDG model in this work ( $H C S T c o - T 0$ ) (a) and optimized RDG model of Easton (S_ht) (b) of Mg-5Zn-xEr alloys (x=0.83, 1.25, 2.5, 5. f_s,_n―solid phase volume fraction corresponding to the coherency (f_s,0) and coalescence (f_s,co) points)