journal article·2020-07Open access

Study on the plastic deformation zone of Q235 steel via hammering tight seam

Yingwei Wang, Xin Dong, Siqi Huo, Zhenhua Lv, Zhongnan Ma, Jinzhu Gao, Xiuying Gai, Rui Wang

Abstract

The formation of pre-stressing layer with certain depth on the surface via hammering can effectively prolong the fatigue life of parts. It is necessary but difficult to accurately analyze the symmetry and synchronism of plastic deformation zone formed by hammering. In this work, we, herein, create an experimental method that tights the Q235 steel rods together via external force and study the plastic deformation zone near tight seam. Through morphology analysis, it is found that the cross profile of plastic deformation zone near tight seam is circular and radially symmetrical, indicating that the sharp of internal plastic deformation zone is spherical. Additionally, the result of dynamic strain experiment confirms that the result obtained by hammering the tight seam is reliable.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Surface Treatment and Residual Stress · Fatigue and fracture mechanics · High-Velocity Impact and Material Behavior

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

References (14)

Show source-provided references
1. Research progress in mechanical processing strengthening mechanism and technology
2. The application of surface hardening technology for the cavity of the mould
3. Investigation of static softening behavior of a low carbon bainitic steel by stress relaxation method
4. The application of stress-relaxation tests to the study of super plasticity
5. Comparison of residual stress analysis method: X-ray diffraction method vs stress release method
6. Impacted indentation method of measuring residue stress
7. FEM analysis of stress-strain for measuring residual stresses with blind-hole method
8. Chen · 2001 · 230
9. Approximate modification method of welding stress determination by impact indentation strain method
10. Chen · 2005 · 116
11. Uncertainty evaluation in measuring residual stress by indentation strain method
12. Tight hammering for plastic zone of materials
13. The best estimation of the parameter in Logistic curve
14. A variety of methods of fit circle