Work

Local deformation distribution and evolution of 25cr2ni2mov welded joints under uniaxial tensile loading

Year: 2025

Type: conference-paper

Abstract: This study addresses the issue of deformation mismatch caused by material heterogeneity in welded rotors of nuclear turbine generators. Focusing on a novel narrow-gap TIG/SAW hybrid weld joint of 25Cr2Ni2MoV steel, a multiscale investigation into the deformation mechanism was conducted. Mechanical properties of the steel were characterized through nanoindentation and uniaxial tensile tests, revealing the gradient distribution of mechanical properties across the weld joint. By integrating microscopic strain field evolution analysis, the study establishes a critical correlation between localized deformation concentration at heterogeneous interfaces and macroscopic instability failure.

Source: Journal of Physics Conference Series

DOI: 10.1088/1742-6596/3068/1/012042

Authors: Fan Ye, Jun Si, Zijian Pan, Sujuan Guo, Mingliang Zhu, Jian Zhao

Institutions: East China University of Science and Technology, Tongji University

Language: English

Topic: Welding Techniques and Residual Stresses

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

Open Access status: diamond

OpenAlex ID: W4413190309

FWCI:

Cites: 8

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Related to: 10