Surface Durability of Induction-hardened 0.45 Per Cent Carbon Steel and Its Optimum Case Depth

Fujita, Komei; Yoshida, Akira; Nakase, Kazuo

doi:10.1299/jsme1958.22.994

Cited by 5 publications

(1 citation statement)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The alternating orthogonal shear stress ô yz and pulsating maximum shear stress ô 458 were considered here. In the cases of the surface-hardened steel rollers and gears [12][13][14][15], and the surface-hardened sintered rollers and gears [4], the occurring depth of the spalling crack was dependent upon the occurring depth of the maximum amplitude [A( ô yz = H V )] max of the ratio of orthogonal shear stress ô yz to Vickers hardness H V as shown in Fig. 5.…”

Section: Calculation Of Stress Intensity Factormentioning

confidence: 99%

Evaluation of the fatigue life of a sintered machine element under the sliding/rolling contact condition based on fracture mechanics

Yoshida

Ohue

Ishikawa

2002

The Journal of Strain Analysis for Engineering Design

View full text Add to dashboard Cite

In order to evaluate the surface durability of sintered machine elements, the fatigue lives of 28 kinds of sintered roller under a sliding/rolling contact condition were estimated using Paris's law based on linear fracture mechanics. The fatigue tests were conducted using a two-cylinder testing machine. The stress intensity factor for the mode II under the Hertzian contact condition was calculated using the finite element model. The value of the stress intensity factor became larger as the crack length became longer to the contact surface, and the value of the stress intensity factor range was independent of the crack angle. It could be clarified that the fatigue lives of the sintered rollers depended on the pore diameter and the hardness. It was obvious that the pore distribution has to be taken into consideration to estimate the fatigue lives of the sintered rollers more precisely.

show abstract