Mechanical and Microstructural Characterization of the Bond Interface Formed in Diffusion Welding of CoCrNi Medium Entropy Alloy (MEA) and AISI 304 Stainless Steel Under Various Processing Parameters

Samiuddin, Muhammad; Li, Jinglong; Muzamil, Muhammad; Uddin, Sumair; Xiong, Jiangtao

doi:10.1007/s12540-022-01309-2

Cited by 10 publications

(2 citation statements)

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“…Consequently, the content of Co and Ni elements is low in this transition zone (see Figure 3b). lower, while the diffusion coefficient of Ti is higher [30]. Consequently, the content of Co and Ni elements is low in this transition zone (see Figure 3b).…”

Section: Interface Characteristicsmentioning

confidence: 91%

“…The diffusion layer, composed of Ti and Cu elements, was predominant on the side of the Ti alloy. Compared to the Cr and Mn elements, the diffusion coefficient of Co and Ni elements is significantly lower, while the diffusion coefficient of Ti is higher [30]. Consequently, the content of Co and Ni elements is low in this transition zone (see Figure 3b).…”

Section: Interface Characteristicsmentioning

confidence: 94%

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Laser Welding of Titanium/Steel Bimetallic Sheets with In Situ Formation of Fex(CoCrNiMn)Tiy High-Entropy Alloys in Weld Metal

Liu,

Ma,

Xue

et al. 2024

Materials

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Due to the notable disparities in the physical and chemical characteristics between titanium and steel, the direct fusion of titanium/steel bimetallic sheets results in a considerable formation of fragile intermetallic compounds, making it difficult to achieve excellent metallurgical welded joints. In this study, a multi-principal powder of CoCrNiMn was designed and utilized as a filler material in the welding of the TA1/Q345 bimetallic sheet. It was expected that the in situ formation of Fex(CoCrNiMn)Tiy high-entropy alloys would be achieved using the filler powders, combined with the Ti and Fe elements from the melting of the TA1 and Q345 so as to restrain the generation of Fe-Ti IMCs and obtain the promising welded joints of the TA1/Q345 bimetallic sheet. An interesting finding is that high-entropy alloys were successfully obtained in the weld metal. The Fe-Ti intermetallic compounds at the welding interface were significantly reduced. The tensile strength was ~293 MPa, accounting for 60% of the strength of the base metal. Dimples were observed at the fracture of the welded joint.

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Section: Interface Characteristicsmentioning

confidence: 91%

Section: Interface Characteristicsmentioning

confidence: 94%