Vacuum diffusion bonding strengthening mechanical properties of 304 stainless steel/low carbon steel composites by in-situ eutectic reaction

IF 3.8 2区材料科学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Vacuum Pub Date : 2025-03-21 DOI:10.1016/j.vacuum.2025.114279

Zelin Yan, Chenhao Sun, Shuang Liu, Xiangpeng Chang, Weiping Tong

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引用次数: 0

Abstract

To effectively regulate high temperature on the properties of the base materials and the surface decarburization of low carbon steel (LCS) caused by the violent atomic interdiffusion, low-temperature vacuum diffusion bonding technology was used via graphite interlayer eutectic reaction with steel. Tunning the hardness distribution of different layer to improve the strength and ductility of 304 stainless steel (304SS)/LCS composite material by an in-situ eutectic reaction. Achieved a strong metallurgical bonded interface layer which consist of pearlite, austenite and M₇C₃ carbide eutectic structure. As a result, the tensile test perpendicular to the interface shows that the yield strength, tensile strength and total elongation of 304SS/LCS composite material are 256 MPa, 419 MPa and 22 %, respectively. The tensile fracture location at LCS layer, demonstrating the superior mechanical properties of the interface layer and the strong metallurgical bonding between 304SS and LCS. This study presents an effective solution for achieving reliable bonding between 304SS and LCS, which can be used for vacuum diffusion bonding of stainless and carbon steels due to its beneficial eutectic reaction.

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来源期刊

Vacuum 工程技术-材料科学：综合

CiteScore

6.80

自引率

17.50%

发文量

审稿时长

34 days

期刊介绍： Vacuum is an international rapid publications journal with a focus on short communication. All papers are peer-reviewed, with the review process for short communication geared towards very fast turnaround times. The journal also published full research papers, thematic issues and selected papers from leading conferences. A report in Vacuum should represent a major advance in an area that involves a controlled environment at pressures of one atmosphere or below. The scope of the journal includes: 1. Vacuum; original developments in vacuum pumping and instrumentation, vacuum measurement, vacuum gas dynamics, gas-surface interactions, surface treatment for UHV applications and low outgassing, vacuum melting, sintering, and vacuum metrology. Technology and solutions for large-scale facilities (e.g., particle accelerators and fusion devices). New instrumentation ( e.g., detectors and electron microscopes). 2. Plasma science; advances in PVD, CVD, plasma-assisted CVD, ion sources, deposition processes and analysis. 3. Surface science; surface engineering, surface chemistry, surface analysis, crystal growth, ion-surface interactions and etching, nanometer-scale processing, surface modification. 4. Materials science; novel functional or structural materials. Metals, ceramics, and polymers. Experiments, simulations, and modelling for understanding structure-property relationships. Thin films and coatings. Nanostructures and ion implantation.