𝔖 Bobbio Scriptorium
✦   LIBER   ✦

An investigation on the microstructural change in the propagating crack tip zone of steel

✍ Scribed by Changchun Li; Hanxino Zhu; Guangxia Li; Kitagawa Hideo

Publisher
Elsevier Science
Year
1993
Tongue
English
Weight
771 KB
Volume
46
Category
Article
ISSN
0013-7944

No coin nor oath required. For personal study only.

✦ Synopsis

16MnR steel has been investigated experimentally and numerically to explore the microstructural change in the crack tip zone. It was found that, under an applied load, carbon atoms near the crack tip diffused in the gradient direction of stress, strain and temperature fields into the crack tip zone, gathered in the zone and phase change took place forming the secondary pearlite structure, on which the crack propagated.

πŸ“œ SIMILAR VOLUMES

On the crack-tip fields of a dynamically
On the crack-tip fields of a dynamically propagating crack in an anisotropic elastic solid
✍ Kuang-Chong Wu πŸ“‚ Article πŸ“… 1989 πŸ› Springer Netherlands 🌐 English βš– 422 KB

General expressions of the crack-tip fields for a dynamically extending crack through an anisotropic elastic material are given. Based on the crack-tip fields, the associated dynamic energy release rate is also derived. Explicit results are given for transversely isotropic materials.

The effect of environments on fatigue-cr
The effect of environments on fatigue-crack propagation in an ultra-high-strength steel
✍ Che-Yu Li; P. M. TaIda; R. P. Wei πŸ“‚ Article πŸ“… 1967 πŸ› Springer Netherlands 🌐 English βš– 466 KB

The influence of various gaseous environments on the rate of fatigue crack growth at room temperature in an 0.45 percent carbon low-alloy ultra-high-strength steel tempered at 400Β°F and at 800Β°F has been investigated. The sensitivity of the rate of fatigue crack growth to moisture in this steel is f