Effect of stress and Si on liquid metal embrittlement of 316L(N)-copper

Sun, Zhenchao; Li, Pengyuan; Zhang, Teng; Wang, Jianbao; Xu, Dan; Chen, Hui; Liu, Danhua; Pei, Yinyin

doi:10.1080/02670836.2021.1929718

Cited by 2 publications

(2 citation statements)

References 20 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Copper-austenite and tin-steel are both brittle couples; the liquid-solid compound process of Sn bronze/steel dissimilar metals is susceptible to LME cracks, leading to bearing failure as a fatigue crack source during service. [8][9][10][11][12] For the Sn bronzesteel system, electroplating Ni onto a steel substrate is a common approach for suppressing LME cracks; however, this technique has some drawbacks, including high cost, high energy consumption, complex procedure, a restricted welding processing window, and limited LME cracks inhibition efficacy. [13] It is feasible to suppress LME cracks by introducing a Cu-Ni alloy interlayer, but this method needs to be coupled with certain manufacturing processes.…”

Section: Introductionmentioning

confidence: 99%

Effect of Al Bronze Interlayer on Liquid–Solid Compound Interface of Sn Bronze/Steel

Wang

Chen

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

To address the challenges of liquid metal embrittlement (LME) cracks and low bonding strength at the Sn bronze/steel liquid–solid compound interface, an innovative Sn bronze/Al bronze/steel laminated composite is fabricated using a wire arc additive manufacturing (WAAM) process, which involved introducing an Al bronze interlayer. The microstructure of interlayer and its related interfaces, as well as the mechanical properties of the composites, are investigated. Results show that the microstructure of Al bronze is mainly composed of α‐Cu and β‐Cu3Al. An interdiffused layer with a maximum thickness of 5 μm exists at the Al bronze/steel interface, which plays an important role in interface adaptation. The Sn bronze/Al bronze interface possesses a 30 μm α(Cu–Al–Fe) transition layer, and the continuous transition of α + β → α(Cu–Al–Fe) → α(Cu–Sn) from the base material to the clad layer is realized. No LME cracks are found in the steel after the Al bronze and Sn bronze deposition. The Al bronze/steel and Sn bronze/Al bronze interfaces exhibit strong bonding strengths of 395 and 361 MPa, respectively.

show abstract

Section: Introductionmentioning

confidence: 99%

Effect of Al Bronze Interlayer on Liquid–Solid Compound Interface of Sn Bronze/Steel

Wang

Chen

et al. 2023

Adv Eng Mater

View full text Add to dashboard Cite

show abstract

“…LME cracks will cause brittle fracture of the composite structure in an instant, which leads to serious consequences. LME can be described as the reduction in ductility of the solid metal when the solid metal is in contact with another liquid metal with a low melting point [25]. The formation of LME cracks is related to the wetting of the steel grain boundaries by liquid copper and the thermal stress during the cladding process in the Cu-Fe system [26].…”

Section: Introductionmentioning

confidence: 99%

Effects of Cu-Ni-Ti Interlayer on Microstructure and Wear Resistance around Gas Tungsten Arc Cladding Copper Matrix Composite Coatings on Steel

Lei

et al. 2022

Coatings

View full text Add to dashboard Cite

Due to the huge difference in thermophysical properties, it is difficult to obtain a defect-free bonding interface between copper and steel. A Cu-Ni-Ti interlayer was added between a TiC-reinforced copper matrix composite coating and Q235 steel in this study to improve its interfacial bond. The influence of the interlayer on its microstructure and properties was studied by characterizing microstructure, phase composition, and wear resistance of the composite coatings. Both coatings were found to consist of α-Cu matrix, in situ-generated TiC, and Fe-rich phases. With the addition of the Cu-Ni-Ti interlayer, the high-hardness unmixed zone at the interface was successfully eliminated due to the sufficient mixing of the molten pool. Even more importantly, liquid metal embrittlement cracks were also restrained, resulting from the Fe-rich solid solution band that reduced the contact probability around liquid copper atoms with the steel grain boundaries formed. In addition, the results showed that the microhardness of composite coatings was improved and the wear loss reduced by 4.2% after adding that interlayer, which was related to the combined action of solid solution strengthening, second-phase strengthening and grain-refinement strengthening mechanisms.

show abstract

Effect of stress and Si on liquid metal embrittlement of 316L(N)-copper

Cited by 2 publications

References 20 publications

Effect of Al Bronze Interlayer on Liquid–Solid Compound Interface of Sn Bronze/Steel

Effect of Al Bronze Interlayer on Liquid–Solid Compound Interface of Sn Bronze/Steel

Effects of Cu-Ni-Ti Interlayer on Microstructure and Wear Resistance around Gas Tungsten Arc Cladding Copper Matrix Composite Coatings on Steel

Contact Info

Product

Resources

About