Next Article in Journal
Effect of Plasma Treatment on Coating Adhesion and Tensile Strength in Uncoated and Coated Rubber Under Aging
Next Article in Special Issue
Enhanced Hardness and Tribological Properties of Copper-Based Steel Backing Self-Lubricating Materials with Y2O3 Micro-Doping
Previous Article in Journal
Deep Eutectic Solvent-Assisted Synthesis of Ni–Graphene Composite Supported on Screen-Printed Electrodes for Biogenic Amine Detection
 
 
Search for Articles:
Title / Keyword
Author / Affiliation / Email
Journal
Article Type
 
 
Advanced Search
 
Section
Special Issue
Volume
Issue
Number
Page
 
Journals
Materials
Volume 18
Issue 2
10.3390/ma18020426
materials-logo
Submit to this Journal Review for this Journal Propose a Special Issue
► Article Menu

Article Menu

share Share announcement Help format_quote Cite question_answer Discuss in SciProfiles
first_page
settings
Order Article Reprints
Font Type:
Arial Georgia Verdana
Font Size:
Aa Aa Aa
Line Spacing:
Column Width:
Background:
Article

In Situ EBSD Observation and Numerical Simulation of Microstructure Evolution and Strain Localization of DP780 Dual-Phase Steel

by
Yupeng Ren
1,
Shengci Li
1,2,*,
Shaohua Feng
1,
Yang Li
1 and
Changwang Yuan
1
1
School of Materials Science and Engineering, Jiangxi University of Science and Technology, Ganzhou 341000, China
2
Jiangxi Provincial Key Laboratory of High-Performance Steel and Iron Alloy Materials, Ganzhou 341000, China
*
Author to whom correspondence should be addressed.
Materials 2025, 18(2), 426; https://doi.org/10.3390/ma18020426
Submission received: 13 December 2024 / Revised: 8 January 2025 / Accepted: 13 January 2025 / Published: 17 January 2025
(This article belongs to the Special Issue Fracture and Fatigue in Metals and Alloys)
Browse Figures
Versions Notes

Highlights

  1. The plastic deformation behavior of DP780 was studied by in situ EBSD and CPFEM.
  2. Deformation mainly occurred in ferrite region, with 45° from the loading direction.
  3. Interfacial debonding was caused by the accumulation of GNDs.
  4. The deformation of grains was related to the Schmid factor of individual grains.

Abstract

To reveal the microstructural evolution and stress–strain distribution of 780 MPa-grade ferrite/martensite dual-phase steel during a uniaxial tensile deformation process, the plastic deformation behavior under uniaxial tension was studied using in situ EBSD and crystal plastic finite element method (CPFEM). The results showed that the geometrically necessary dislocations (GND) in ferrite accumulated continuously, which is conducive to the formation of grain boundaries, but the texture distribution did not change significantly. The average misorientation angle decreased and the proportion of low-angle grain boundaries increased with the increase of strain. At high strain, the plastic deformation mainly occurred in the soft ferrite region within a 45° distribution from the loading direction. In the undeformed state, the texture of the dual-phase steel was characterized by α-fibers and γ-fibers. Interfacial debonding was caused by the accumulation of geometrically necessary dislocations. The fracture morphologies showed that the specimens had typical ductile fracture characteristics.
Keywords: dual-phase steel; deformation behavior; martensite; crystal plastic finite element method dual-phase steel; deformation behavior; martensite; crystal plastic finite element method

Share and Cite

MDPI and ACS Style

Ren, Y.; Li, S.; Feng, S.; Li, Y.; Yuan, C. In Situ EBSD Observation and Numerical Simulation of Microstructure Evolution and Strain Localization of DP780 Dual-Phase Steel. Materials 2025, 18, 426. https://doi.org/10.3390/ma18020426

AMA Style

Ren Y, Li S, Feng S, Li Y, Yuan C. In Situ EBSD Observation and Numerical Simulation of Microstructure Evolution and Strain Localization of DP780 Dual-Phase Steel. Materials. 2025; 18(2):426. https://doi.org/10.3390/ma18020426

Chicago/Turabian Style

Ren, Yupeng, Shengci Li, Shaohua Feng, Yang Li, and Changwang Yuan. 2025. "In Situ EBSD Observation and Numerical Simulation of Microstructure Evolution and Strain Localization of DP780 Dual-Phase Steel" Materials 18, no. 2: 426. https://doi.org/10.3390/ma18020426

APA Style

Ren, Y., Li, S., Feng, S., Li, Y., & Yuan, C. (2025). In Situ EBSD Observation and Numerical Simulation of Microstructure Evolution and Strain Localization of DP780 Dual-Phase Steel. Materials, 18(2), 426. https://doi.org/10.3390/ma18020426

Note that from the first issue of 2016, this journal uses article numbers instead of page numbers. See further details here.

Article Metrics

Back to TopTop