Effect of Reduction on Bonding Interface of Hot-rolled Wear-resistant Steel BTW1/Q345R Cladding Plate

Abstract

Wear-resistant cladding plates consisting of a substrate (Q345R) and a clad layer (BTW1) were bonded through hot rolling at the temperature of 1 200 °C and a rolling speed of 0.5 m/s. The microhardness of the cladding plate was also tested after being heat treated. The microstructure evolution on the interface of BTW1/Q345R sheets under various reduction rates was investigated with a scanning electron microscope (SEM) and EBSD. It is found that the micro-cracks and oxide films on the interface disappear when the reduction is 80%, whereas the maximum uniform diffusion distance reaches 10 μm. As a result, a wide range of metallurgical bonding layers forms, which indicates an improved combination between the BTW1 and the Q345R. Additionally, it is discovered that the unbroken oxide films on the interface are composed of Mn, Si or Cr at the reductions of 50% and 65%. The SEM fractography of tensile specimen demonstrates that the BTW1 has significant dimple characteristics and possesses lower-sized dimples with the increment in reduction, suggesting that the toughness and bonding strength of the cladding plates would be improved by the increase of reduction. The results reveal that a high rolling reduction causes the interfacial oxide film broken and further forms a higher-sized composite metallurgical bonding interface. The peak microhardness is achieved near the interface.

Keywords

BTW1/Q345R clad plate / hot-rolled bonding / reduction / oxide films / fractography

References

[1] Tang LL. The Performance Characteristics and Application of High Chromium Wear-Resistant Composite Panels[J]. Opencast Mining Technology, 2011, 2: 82-83.

[2] Xu BS, Liu SC. New Technologies of Surface Engineering[M]. 2002 Beijing: National Defense Industry Press.

[3] Qiu XW, Zhang YP, Chun GL. Study on Ware Resistance of Laser Hardening Rolling Mill Liner[J]. Applied Mechanics and Materials, 2012, 121-126: 3551-3554.

[4] Liu GY, Gao JP, Wang JX. Study on Friction and Wear Properties between Medium ManganeseSteel BTW1 and Hardox500[J]. Coal Mine Machinery, 2016, 37: 69-70.

[5] Yue HL, Wang JX, Gao JP. Study on Friction and Wear Properties of Medium Manganesesteel BTW11[J]. Mining & Processing Equipment, 2015, 3: 119-122.

[6] Yazdani M M, Reza T, Mohammad H Seyyed. Investigation of microstructure and mechanical properties of St37 steel-Ck60 steel joints by explosive cladding[J]. Mater. Eng. Perform, 2015, 24: 4032-4043.

[7] Liang YL, Wang ZB, Zhang J, et al. Enhanced Bonding Property of Cold-sprayed Zn-Al Coating on Interstitial-free Steel Substrate with a Nanostructured Surface Layer[J]. Applied Surface Science, 2016, 385: 341-348.

[8] Gholipour A, Shamanian M, Ashrafizadeh F. Microstructure and Wear Behavior of Stellite 6 Cladding on 17–4 PH Stainless Steel[J]. Alloy. Compd., 2011, 509: 4905-4909.

[9] Akramifard HR, Mirzadeh H, Parsa MH. Cladding of Aluminum on AISI 304L Stainless Steel by Cold Roll Bonding: Mechanism, Microstructure, and Mechanical Properties[J]. Mater. Sci. Eng.: A, 2014, 613: 232-239.

[10] Qiu J, Cheng XR, Lan K, Lei D, Huang DJ. Resistant Steel NM450D-Carbon Steel Q235B Clad Plate[J]. Special Steel, 2017, 2: 56-59.

[11] Yu C, Xiao H, Yu H, et al. Mechanical Properties and Interfacial Structure of Hot-roll Bonding TA2/Q235B Plate Using DT4 Interlayer[J]. Materials Science & Engineering A, 2017

[12] Zhu Z, He Y, Zhang X, et al. Effect of Interface Oxides on Shear Properties of Hot-rolled Stainless Steel Clad Plate[J]. Materials Science & Engineering A, 2016, 669: 344-349.

[13] Sun CY, Li L, Fu MW, et al. Element Diffusion Model of Bimetallic Hot Deformation in Metallurgical Bonding Process[J]. Materials & Design, 2016, 94: 433-443.

[14] Zhao G, Huang Q, Zhou C, et al. Experiment and Simulation Analysis of Roll-bonded Q235 Steel Plate[J]. Revista De Metalurgia., 2016, 52(2): e069

[15] Zhou LZ, Yang LM, Zhu XR, et al. Generation Mechanism of Interfacial Layer and Its Effect on Fe-Cr-Ni/Al-Si-Cu-Ni-Mg Composite Performance[J]. Journal of Wuhan University of Technology, 2017, 32: 1193-1198.

[16] Ming M, Wei X, Yan H, et al. Low-velocity Impact Property of Alumina/Epoxy/Metal Laminated Composites[J]. Journal of Wuhan University of Technology, 2016, 31: 779-785.

[17] Li GR, Zhao D, et al. Interfacial Microstructure and Mechanical Properties of Al Alloy/Mg Alloy Laminated Composite Plates Fabricated by Equal Channel Angular Processing[J]. Journal of Wuhan University of Technology, 2016, 31(2): 417-421.

[18] Zu GY, Li XB, Zhang J, et al. Interfacial Characterization and Mechanical Property of Ti/Cu Clad Sheet Produced by Explosive Welding and Annealing[J]. Journal of Wuhan University of Technology, 2015, 30: 1198-1203.

[19] Nomura M, Hashimoto I, Kozuma S, et al. Effects of Surface Oxides on the Phosphatability of the High Strength Cold Rolled Steels(Surface Treatment and Corrosion)[J]. Tetsu-to-Hagane, 2006, 92: 378-384.

[20] Peng XK, Wuhrer R, Heness G, et al. Rolling Strain Effects on the Interlaminar Properties of Roll Bonded Copper/Aluminium Metal Laminates[J]. Journal of Materials Science, 2000, 35: 4357-4363.

[21] Kurt B, Alik C. A. Interface Structure of Diffusion Bonded Duplex Stainless Steel and Medium Carbon Steel Couple[J]. Materials Characterization, 2009, 60: 1035-1040.