Figure 
pre 
VTLS 
Figure 9: Microstructures of betatized specimens, a — spray formed + hot pressed, b — 700°C, ¢ — 800°C, d — 
850°C, e — 900°C, detention time: 30 minutes, oil quenching 
Figure 10: k — precipitations in betatized specimens, a — 700°C, b — 800°C, ¢ — 900°C 
266