Research Article

Purity Effect of High-Strength Steel on Failure Behavior of Automobile Front Axle

Figure 9

Microstructure comparison. (a) Microstructure of X-2. (b) Microstructure of X-2. (c) Microstructure of X-4. (d) Microstructure of X-4. (e) Microstructure of Y-2. (f) Microstructure of Y-2. (g) Microstructure of Y-4. (h) Microstructure of Y-4.