[G] Fundamentals of Mechanical Properties

1:30 PM - 1:45 PM JST(4:30 AM - 4:45 AM UTC)

[176] Effects of forging method on the fatigue limit of open-die forged alloy tool steel SKT4

○Haruki Degoshi¹, Naoto Shiraki¹, Seki Hirotomo² (1. Tokyo City University, 2. Proterial, Ltd.)

Keywords:

fatigue,open-die forging,alloy tool steel,SKT4

SKT4 alloy tool steel offers heat resistance, impact resistance, and wear resistance, but its forging process is complex and costly. This study investigated how forging methods and sampling locations affect the microstructure, grain size, and fatigue limit of SKT4 steel.