**4. Conclusions**

The 2-mm TA1/Q235B composite sheets (TA1 is 0.4 mm and Q235B is 1.6 mm) are fabricated through explosive welding and nine passes of hot rolling at different temperatures. The microstructure and mechanical properties were studied and the following conclusions were drawn:


**Author Contributions:** H.L. and X.L. conceived and designed the experiments; L.C. performed the experiments; W.Z. and C.W. analyzed the data; Z.Z. contributed reagents/materials/analysis tools; C.Z. wrote the paper. All authors have read and agreed to the published version of the manuscript.

**Funding:** This research was funded by the Fundamental Research Fund for the Central Universities of Central South University (Grant Number: 502041002) and the Open Sharing Fund for the Large-scale Instruments and Equipment of Central South University.

**Acknowledgments:** This research was financially supported by the Fundamental Research Fund for the Central Universities (Changsha, China) and the Open Sharing Fund for the Large-scale Instruments and Equipment of Central South University. The authors are grateful to the Hunan Phohom New Material Technology Co., Ltd for the support in explosive welding experiment.

**Conflicts of Interest:** The authors declare no conflict of interest.
