May 2019 Volume 1

FORGING RESEARCH

Figure 11 SWT parameter versus fatigue life curves based on the strain-life approach for the forged steel, cast aluminum and cast iron steering knuckles. Figure 11 SWT parameter versus fatigue life curves based on the strain-life approach for the forged steel, cast aluminum and cast iron steering knuckles.

FRACTURE

CRACK NUCLEATION

CRACK GROWTH

26 Figure 12 Typical fractured (left) and fracture surface of the forged steel steering knuckle. Figure 12 Typical fractured (left) and fracture surface of the forged steel steering knuckle.

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