Analysis of the fracture kinetics and mechanisms of 20GL steel having different strengths using the acoustic emission parameters
- 作者: Nikulin S.1, Khanzhin V.1, Nikitin A.1, Turilina V.1, Zabolotnikova V.1
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隶属关系:
- National University of Science and Technology MISiS
- 期: 卷 2017, 编号 10 (2017)
- 页面: 895-900
- 栏目: Diagnostics and Mechanical Test Techniques
- URL: https://journals.rcsi.science/0036-0295/article/view/171801
- DOI: https://doi.org/10.1134/S0036029517100160
- ID: 171801
如何引用文章
详细
A joint analysis of acoustic emission pulse amplitudes, deformation diagrams, and fracture surfaces is used to study the fracture kinetics and mechanisms of 20GL steel specimens having different hardnesses and cut from the upper fragment of a freight bogie solebar. The fracture of the steel specimens subjected to normalizing and having a uniform strength and ductility over the entire cross section proceeds continuously. The crack that nucleated in the specimens with a gradient strength distribution over the cross section after volume–surface quenching slows down in a layer of a variable strength and ductility and stops in a ductile core. The crack sizes are determined from the measured peak amplitudes of acoustic emission.
作者简介
S. Nikulin
National University of Science and Technology MISiS
编辑信件的主要联系方式.
Email: nikulin@misis.ru
俄罗斯联邦, Leninskii pr. 4, Moscow, 119049
V. Khanzhin
National University of Science and Technology MISiS
Email: nikulin@misis.ru
俄罗斯联邦, Leninskii pr. 4, Moscow, 119049
A. Nikitin
National University of Science and Technology MISiS
Email: nikulin@misis.ru
俄罗斯联邦, Leninskii pr. 4, Moscow, 119049
V. Turilina
National University of Science and Technology MISiS
Email: nikulin@misis.ru
俄罗斯联邦, Leninskii pr. 4, Moscow, 119049
V. Zabolotnikova
National University of Science and Technology MISiS
Email: nikulin@misis.ru
俄罗斯联邦, Leninskii pr. 4, Moscow, 119049
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