Deformation Characteristics and Mechanical Properties of Ti/Al Bimetallic Composite Materials Fabricated by Wire Plus Arc Additive Manufacturing

Abstract

We focused on Ti/Al composite materials fabricated by wire and arc addictive manufacturing, and the microstructure and interface characteristics of them before and after hot compression deformation were compared. After compression deformation, all α structures of titanium were compacted with the emergence of Widmanstatten structures. Coarsened colonies α of titanium were elongated and waved along the original growth direction, resulting in anisotropy of grains. Pores and Ti/Al intermetallic compounds of aluminum are significantly decreased after hot compression. Meanwhile, a good bonding interface between titanium and aluminum is obtained after hot compression, and the element diffusion is more intense. In addition, the mechanical properties and fracture behaviors of Ti/Al composite material with different clad ratio that is defined as the ratio of the thickness of titanium to that of the Ti/Al composite material are investigated by uniaxial tensile test. The experimental results show that the ultimate tensile strength of Ti/Al composite material is between that of single deposited titanium and aluminum, while the elongation of Ti/Al composite material with low clad ratio is lower than that of single aluminum due to the metallurgical reaction. As the clad ratio increases, the two component layers are harder to separate during deformation, which is resulted from the decrease of the inward contraction stress of three-dimensional stress caused by necking of aluminum. This work may promote the engineering application of Ti/Al bimetallic structures.

Keywords

wire plus arc additive manufacturing / aluminium alloy / titanium alloy / bimetallic composite materials / deformation / mechanical properties

References

[1] Bandyopadhyay A, Heer B. Additive Manufacturing of Multi-material Structures. Mater. Sci. Eng. R Rep., 2018, 129: 1-16. J]

[2] Ban HY, Bai RS, Chung KF, et al. Post-fire Material Properties of Stainless-clad Bimetallic Steel. Fire Saf. J., 2020, 112: 102 964. J]

[3] Chu QL, Tong XW, Xu S, et al. Interfacial Investigation of Explosion-Welded Titanium/Steel Bimetallic Plates. J. Mater. Eng. Perform., 2020, 29: 78-86. J]

[4] Liu XF, Bai YL, Li JK, et al. Influence Factors of Interfacial Bonding Strength of Cold Rolled Titanium/Steel Laminated Composite Plates. Journal of Materials Engineering, 2020, 48: 119-126. [J]

[5] Woo YY, Oh IY, Hwang TW, et al. Analysis of Shape Defects during Flexible Roll Forming of Steel/Aluminum Double-layered Blanks. Int. J. Mater. Form., 2020, 13: 861-872. J]

[6] Xiao H, Xu PP, Qi ZC, et al. Preparation of Steel/Aluminum Laminated Composites by Differential Temperature Rolling with Induction Heating. Acta Metall. Sin., 2020, 56: 231-239. [J]

[7] Keller C, Moisy F, Nguyen N, et al. Microstructure and Mechanical Properties Characterization of Architectured Copper Aluminum Composites Manufactured by Cold-drawing. Mater. Charact., 2021, 172: 110 824. J]

[8] Chen Y, Wang AQ, Tian HW, et al. Study on Optimization of Nozzle for Copper-aluminium Clad Plate Twin-roll Cast-rolling. J. Mater. Res. Technol-JMRT., 2021, 10: 1 075-1 085. J]

[9] Zhou BB, Ye C, Zhang BJ, et al. Effect of Heat Treatment on the Mechanical Properties and Microstructures of Zirconium-Titanium-steel Composite Plate. Rare Metal. Mat. Eng., 2020, 49: 59-67. [J]

[10] Yang HK, Ng BC, Yu HC, et al. Mechanical Properties Study on Sandwich Hybrid Metal/(Carbon, Glass) Fiber Reinforcement Plastic Composite Sheet [J]. Adv. Compos. Hybrid. Mater., 2021, doi: https://doi.org/10.1007/s42114-021-00213-4.

[11] Zhou YF, Qin GK, Li L, et al. Formability, Microstructure and Mechanical Properties of Ti-6Al-4V Deposited by Wire and Arc Additive Manufacturing with Different Deposition Paths. Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process, 2020, 772: 138 654. J]

[12] Yang QF, Xia CJ, Deng YQ, et al. Microstructure and Mechanical Properties of AlSi7Mg0.6 Aluminum Alloy Fabricated by Wire and Arc Additive Manufacturing Based on Cold Metal Transfer (WAAM-CMT). Materials, 2019, 12: 2 525. J]

[13] Qi ZC, Yu C, Xiao H, et al. Deformation Coordination Compatibility and Bonding properties of Ti/Al Composite Plates Prepared by Different Temperature Rolling. The Chinese Journal of Nonferrous Metals, 2018, 28: 1 120-1 127. [J]

[14] Ege ES, Inial OT. Stability of Interfaces in Explosively-welded Aluminum-titanium Laminates. J. Mater. Sci. Lett., 2000, 19: 1 533-1 535. J]

[15] Huang HG, Chen P, Ji C. Solid-liquid Cast-rolling Bonding (SLCRB) and Annealing of Ti/Al Cladding Strip. Mater. Des., 2017, 118: 233-244. J]

[16] Tian YB, Shen JQ, Hu SS, et al. Microstructure and Mechanical Properties of Wire and Arc Additive Manufactured Ti-6Al-4V and AlSi5 Dissimilar Alloys Using Cold Metal Transfer Welding. J. Manuf. Process., 2019, 46: 337-344. J]

[17] Williams SW, Martina F, Addison AC, et al. Wire Plus Arc Additive Manufacturing. Mater. Sci. Technol., 2016, 32: 641-647. J]

[18] Tian YB, Shen JQ, Hu SS, et al. Wire and Arc Additive Manufactured Ti-6Al-4V/Al-6.25Cu Dissimilar Alloys by CMT-welding: Effect of Deposition Order on Reaction Layer. Sci. Technol. Weld Join., 2020, 25: 73-80. J]

[19] Domblesky J, Kraft F. Metallographic Evaluation of Welded Forging Preforms. J. Mater. Process Technol., 2007, 191: 82-86. J]

[20] Domblesky J, Kraft F, Druecke B, et al. Welded Preforms for Forging. J. Mater. Process Technol., 2006, 171: 141-149. J]

[21] Wang JC, Langlois L, Rafiq M, et al. Study of the Hot Forging of Weld Cladded Work Pieces Using Upsetting Tests. J. Mater. Process Technol., 2014, 214: 365-379. J]

[22] Zhang ZL, Hauge M, Thaulow C, et al. A Notched Cross Weld Tensile Testing Method for Determining True Stress-strain Curves for Weldments. Eng. Fract. Mech., 2002, 69: 353-366. J]

[23] Baufeld B, van der Biest O. Mechanical Properties of Ti-6Al-4V Specimens Produced by Shaped Metal Deposition. Sci. Technol. Adv. Mater., 2009, 10: 015 008. J]

[24] Shivraman T. Challenges Associated with the Wire Arc Additive Manufacturing (WAAM) of Aluminum Alloys. Mater. Res. Express, 2019, 6: 112 006. J]

[25] Tonelli L, Laghi V, Palermo M, et al. AA5083 (Al-Mg) Plates Produced by Wire-and-arc Additive Manufacturing: Effect of Specimen Orientation on Microstructure and Tensile Properties. Progress in Additive Manufacturing, 2021, 6(3): 479-494. J]

[26] Shi XZ, Ma SY, Liu CM, et al. Selective Laser Melting-wire Arc Additive Manufacturing Hybrid Fabrication of Ti-6Al-4V Alloy: Microstructure and Mechanical Properties. Mater. Sci. Eng. A-Struct. Mater. Prop. Microstruct. Process, 2017, 684: 196-204. J]

[27] Yu ZL, Yuan T, Xu M, et al. Microstructure and Mechanical Properties of Al-Zn-Mg-Cu Alloy Fabricated by Wire + Arc Additive Manufacturing. J. Manuf. Process, 2021, 62: 430-439. J]