粉末粒度对钛合金闭式叶轮成形的影响

尚学文, 崔潇潇, 徐磊, 卢正冠

Effect of Powder Particle Size on Forming Titanium Alloy Shrouded Impeller

SHANG Xuewen, CUI Xiaoxiao, XU Lei, LU Zhengguan

表1 3种预合金粉末的化学成分与杂质含量 (mass fraction / %)

Table 1 Chemical compositions and impurity contents of three pre-alloyed powders

Powder No. Al Sn Fe C Si H N O Ti 1# 5.02 2.58 0.009 0.0097 0.008 0.0034 0.0043 0.10 Bal. 2# 5.01 2.57 0.009 0.0099 0.008 0.0038 0.0044 0.10 Bal. 3# 5.02 2.53 0.009 0.0077 0.009 0.0017 0.0051 0.11 Bal.