Experimental and numerical simulation study of Zr-based BMG/Al composites manufactured by underwater explosive welding

Liang, Hanliang; Luo, Ning; Shen, Tao; X, Sun; Fan, Xiangpeng; Cao, Yang

doi:10.1016/j.jmrt.2019.11.079

Cited by 38 publications

(11 citation statements)

References 32 publications

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“…IA Bataev [29] used the SPH method to study the formation and motion of interface re-entry jets, and proposed a new model for interface waveform growth. HLA B [30] discussed the JH-2 (Johnson-Holmquist-Ceramics) constitutive model using the SPH method and observed interface waveform structures consistent with the test results of composite materials. Recently, molecular dynamics (MD) algorithm has also shown great application value in the field of explosive welding.…”

Section: Introductionmentioning

confidence: 66%

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Xiaoming,

Changgen,

Haitao

et al. 2023

Mater. Res. Express

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The explosive welding technology of titanium alloy Ti6Al4V/aluminum alloy 7075 is the most valuable research problem in the field of Ti/Al explosive welding. In this paper, the smooth particle hydrodynamics and molecular dynamics algorithms are used to conduct multi-scale numerical calculations on the explosive welding of Ti6Al4V and 7075. The interface morphology, interface atomic movement, lattice changes and crystal defects are comprehensively analyzed. With the calculation as a reference, the Ti6Al4V/7075 composite with a flat interface is prepared. The calculation results indicate that with the transformation of titanium aluminum crystal structure, a large number of various dislocations, mainly 1/6<110>dislocations, are generated on the titanium side; During explosive welding, uniform and stable element diffusion occurred. Element diffusion mainly occurred in the unloading stage when the pressure was 0. The melting zone and ablation zone were composed of TiAl and TiAl3, respectively; The fundamental reason for the combination of Ti6Al4V/7075 is the diffusion of elements and the solid-phase binding of atoms.

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Section: Introductionmentioning

confidence: 66%

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Xiaoming,

Changgen,

Haitao

et al. 2023

Mater. Res. Express

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“…20 c and d. The composite of SLM BMGs is a feasible way to improve the plasticity of amorphous alloys, which has a similar principle to bulk amorphous alloys [181].…”

Section: Zr-based Bmgsmentioning

confidence: 99%

Research progress on selective laser melting (SLM) of bulk metallic glasses (BMGs): a review

Zhang

Tan

Tian

et al. 2021

Int J Adv Manuf Technol

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Bulk metallic glasses (BMGs) are a subject of interest due to their superior specific properties such as low coefficient of friction, high strength, large ductility in bending, high elastic modulus, high microhardness, and high resistance to corrosion, oxidation, wear, and so on. However, BMGs are difficult to apply in industry due to their difficulty in manufacturing and secondary operation. In the past few decades, many efforts have been carried out to overcome the defects in the manufacturing of BMGs. It is difficult to fabricate complex structures with the whole amorphous alloy owing to the limit of crystallization and critical cooling rate. Additive manufacturing (AM), such as selective laser melting (SLM), can obtain relatively high cooling rates during the “layer-by-layer” process, which makes it possible to surpass the dimensional limitation of metallic glass. In the SLM process, the high-speed cooling of molten pool and the avoidance of secondary processing are very beneficial to the production and application of amorphous alloys. In this paper, based on the research of SLM additive manufacturing BMGs in recent years, the factors affecting crystallization and forming ability are discussed from many aspects according to different material systems. The status and challenges of SLM manufacturing BMGs including Fe-based, Zr-based, Al-based, and some composite-based BMGs will be presented. Mechanical properties and physicochemical properties were introduced. This review aims to introduce the latest developments in SLM additive manufacturing BMGs, especially on the development of process parameters, structure formation, simulation calculation, fracture mechanism, and crystallization behavior. With the traditional fabricating methods, BMGs were mainly used as a structure material. It will provide another alternative to use BMGs as a functional material by introducing SLM technology in amorphous preparation with complex geometry. This review summarizes the technical difficulty and application prospects of BMGs preparation by SLM and discusses the challenges and unresolved problems. This review identifies key issues that need to be addressed in this important field in the future. These problems are related to the application of BMGs as high-strength structural materials and new functional materials in the future.

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“…The formation of the wavy structure is a consequence of variations in the pressure distribution at the collision point caused by self-induced oscillation near the joining interface. The wavy interface is the main characteristic of explosive welded plates, which represents more welding are and higher bonding strength [29]. EDS analysis was applied as mapping and points at the Cu/HEAs interface at different locations.…”

Section: Interface Morphologymentioning

confidence: 99%

Interfacial Microstructure of FeCoNiCrAl0.1 High Entropy Alloy and Pure Copper Prepared by Explosive Welding

Tian

Liang

Zhao³

et al. 2020

Coatings

Self Cite

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The FeCoNiCrAl0.1 high entropy alloys (HEAs) and pure copper (Cu) composite plates were successfully fabricated by the explosive welding technique using two different gap distances. The interfacial microstructure, elemental distribution, grain structure of vortex zone and hardness were characterized using optical microscopy (OM), scanning electron microscopy (SEM), electron backscattered diffraction (EBSD), nanoindentation and micro-hardness tester. The explosive weldability window was calculated to verify the weldability of HEAs and Cu. The results indicated that the Cu/HEA composites presented typical wavy structures without visible defects and have an excellent bonding quality. The elements mixed and formed intermetallic compounds at the vortex zones. The grains near the vortex zones showed strong deformation, and phase transformation occurred. Compared with the matrix metals, the hardness of Cu and HEAs increased near the welding interface and sharply increased to 375 HV near the vortex zone.

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Experimental and numerical simulation study of Zr-based BMG/Al composites manufactured by underwater explosive welding

Cited by 38 publications

References 32 publications

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Atomic motion behavior calculation and bonding mechanism analysis of explosive welding of high-strength and high-hardness titanium alloy Ti6Al4V/aluminum alloy 7075

Research progress on selective laser melting (SLM) of bulk metallic glasses (BMGs): a review

Interfacial Microstructure of FeCoNiCrAl0.1 High Entropy Alloy and Pure Copper Prepared by Explosive Welding

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