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Article

Influence of Rolling Temperatures on Interface Microstructure and Mechanical Properties of Multi-Pass Rolling TA1/Q235B Explosive Welded Sheets

1
School of Materials Science and Engineering, Central South University, Changsha 410083, China
2
State Key Laboratory of Powder Metallurgy, Central South University, Changsha 410083, China
3
Key Laboratory of Nonferrous Metal Materials Science and Engineering, Ministry of Education, Central South University, Changsha 410083, China
4
Hunan Phohom New Material Technology Co., Ltd., Changsha 410083, China
*
Author to whom correspondence should be addressed.
Metals 2020, 10(12), 1654; https://doi.org/10.3390/met10121654
Received: 2 November 2020 / Revised: 3 December 2020 / Accepted: 6 December 2020 / Published: 9 December 2020
(This article belongs to the Special Issue Advanced Welding Technology in Metals)
The effect of rolling temperatures on the interface microstructure and mechanical properties is investigated using 2-mm-thick TA1/Q235B composite sheets, which were prepared after nine passes of hot rolling of explosive welded plates. The results show that the vortex region and the transition layer exist in the interface at the explosive welded plate, while only the transition layer exists in the interface after hot rolling. The transition layer is composed of α-Ti, TiC, Fe, and FeTi, and the thickness increases with the increasing rolling temperature. The microhardness of the explosive welded plate is higher than that of the hot-rolling sheet, and the microhardness of interface are higher than that of matrix metals. The interface shear strength and tensile elongation of the hot-rolled sheet increase with the increasing hot rolling temperature, while the ultimate tensile strength (UTS), yield strength (YS) and Young modulus decrease with the increase of hot rolling temperature. The shear strength of sheets is related to the interfacial compounds, and the tensile strength is mainly affected by the grain morphology of the matrix. View Full-Text
Keywords: TA1/Q235B composite sheets; rolling temperature; explosive welding; microstructures; mechanical properties TA1/Q235B composite sheets; rolling temperature; explosive welding; microstructures; mechanical properties
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MDPI and ACS Style

Li, H.; Cao, L.; Liang, X.; Zhang, W.; Wu, C.; Zeng, Z.; Zhou, C. Influence of Rolling Temperatures on Interface Microstructure and Mechanical Properties of Multi-Pass Rolling TA1/Q235B Explosive Welded Sheets. Metals 2020, 10, 1654. https://doi.org/10.3390/met10121654

AMA Style

Li H, Cao L, Liang X, Zhang W, Wu C, Zeng Z, Zhou C. Influence of Rolling Temperatures on Interface Microstructure and Mechanical Properties of Multi-Pass Rolling TA1/Q235B Explosive Welded Sheets. Metals. 2020; 10(12):1654. https://doi.org/10.3390/met10121654

Chicago/Turabian Style

Li, Huizhong, Liangming Cao, Xiaopeng Liang, Wending Zhang, Chunping Wu, Zhiheng Zeng, and Chengshang Zhou. 2020. "Influence of Rolling Temperatures on Interface Microstructure and Mechanical Properties of Multi-Pass Rolling TA1/Q235B Explosive Welded Sheets" Metals 10, no. 12: 1654. https://doi.org/10.3390/met10121654

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