Interfacial Investigation of Explosion-Welded Titanium/Steel Bimetallic Plates

Chu, Qiaoling; Tong, Xiongwei; Xu, Shuai; Zhang, Min; Li, Jihong; Yan, Fu Xue; Yan, Cheng

doi:10.1007/s11665-019-04535-9

Cited by 47 publications

(10 citation statements)

References 49 publications

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“…Ample literature data confirm the participation of both iron and titanium in the created remeltings in the form of metallic inclusions with stoichiometric formula Fe 2 Ti and FeTi. Some researchers report amorphous phases occurring at the Ti/steel phase boundary [51][52][53]. Fe-Ti alloys do not have a high glass forming ability.…”

Section: Bimetal Inconel 625 -P355nhmentioning

confidence: 99%

Application possibilities of scanning acoustic microscopy in the assessment of explosive welding

Korzeniowski

Białobrzeska

Lewandowska

2022

Materials Science-Poland

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The last two decades have brought stable and impressive development accompanied by the industry acceptance of the use of high energy techniques based on energy obtained from explosive detonation energy. Such manufacturing processes are not only commercially viable, but also allow complex product shapes and unique combinations of metal sheets in terms of materials to be obtained; they enable the creation of composites which cannot be obtained by other conventional methods. Plated sheets are composed of a base material and a thinner plating material layer. An essential aspect in the validation of explosive welding is the quality control of joints made using this technology. The basic control methods are destructive tests – mainly metallographic, which reveal the microstructure at the connection boundary. Non-destructive tests, used in industrial practice, are classical, normalised ultrasonic tests of welding joints, conducted in accordance with ISO 17640:2017 and ISO 11666:2018 standards. Due to the relatively low thickness of the explosion-tested layers (2 mm and 3 mm single layers), which is the object of this study, assessing them using widely available ultrasonic techniques is limited. According to current scientific studies, the application of the scanning acoustic microscopy (SAM) is a prospective non-destructive method allowing for the qualitative and quantitative assessment of the continuity of the metallic connection on the contact surface of two materials. This paper presents the results of research on the quality of clads, welded explosively using a non-destructive research technique, namely SAM, verified with metallographic tests.

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Section: Bimetal Inconel 625 -P355nhmentioning

confidence: 99%

Application possibilities of scanning acoustic microscopy in the assessment of explosive welding

Korzeniowski

Białobrzeska

Lewandowska

2022

Materials Science-Poland

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“…28 A recent study of the microstructure and mechanical properties of welded titanized steels has shown that the mixing zone of such steels is dominated by the FeTi intermetallic phases, such as FeTi, Fe 2 Ti and Fe-based metal, among which FeTi possesses the highest hardness. 29 In this work, DFT-based calculations are used to study the effect of nitriding on the structural and mechanical properties of a titanized steel coating. The FeTi phase is considered as a universal model of the FeTi mixed zone of the titanized steel.…”

Section: Introductionmentioning

confidence: 99%

The nitriding effect on the stability and mechanical properties of the iron titan phase: first-principles investigation

Ishkildin,

Kistanov,

Izosimov

et al. 2023

Phys. Chem. Chem. Phys.

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“…So far, much work has been done to test the explosive welds in heat-treated conditions because it is indispensable in processing these materials. The literature mostly presents the information on the microstructure collected by light microscopy and scanning electron microscopy (SEM) (Gloc et al, 2016;Ning et al, 2017;Prazmowski et al, 2017;Chu et al, 2019). A typical Ti/steel interface has a wavy morphology with locally occurring remelting, which is the part of microstructure that is the most frequently presented in scientific reports.…”

Section: Introductionmentioning

confidence: 99%

“…These regions were found to be composed of intermetallic phases. For example, in the work (Chu et al, 2019), it was shown that in the remelted areas due to the explosive welding (EXW), the FeTi and Fe 2 Ti intermetallic phases were formed. Similar observations were reported in other works (Song et al, 2011; Paul et al, 2014; Chu et al, 2017; Lazurenko et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

“…Such a layer can only be observed using transmission electron microscopy (TEM). In general, it has been found that the thickness of the observed layer is in the range of 100–300 nm (Chiba et al, 2004; Song et al, 2011; Paul et al, 2014; Guoyin et al, 2017) or thicker (Gloc et al, 2016; Wachowski et al, 2017; Lazurenko et al, 2018), depending on the location of the extracted TEM lamella (Chu et al, 2019). This thin interlayer has an amorphous or fine crystalline structure (Chiba et al, 2004; Yang et al, 2006; Chu et al, 2017; Guoyin et al, 2017; Lazurenko et al, 2018).…”

Section: Introductionmentioning

confidence: 99%

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TEM Observations of the Microstructural Changes in the Interfacial Zone of Explosively Welded Titanium/Steel Before and After Ex Situ and In Situ Heat Treatment

et al. 2022

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This paper presents the comparison of the microstructure of the interface zone formed between titanium (Ti Gr. 1) and steel (P265GH+N) in various processing stages—directly after explosive welding versus the annealing state. Transmission electron microscopy technique served as an excellent tool for studies of the sharp interface in-between the waves. Directly after the welding process in this area, a thin layer of the metastable β-Ti (Fe) solid solution was observed. In the next step, two variants of annealing have been employed: ex situ and in situ in TEM, which revealed the complete information on the interface zone transformation. The results have shown that during the annealing at 600°C for 1.5 h, the diffusion of carbon towards titanium caused the formation of titanium carbides with a layered arrangement. Compared to our previous studies, the carbides found here have a hexagonal structure. Furthermore, changes in the dislocation structure were observed, indicating the occurrence of recovery processes. Possible reasons for differences observed in the microstructure of the interface formed due to ex situ and in situ annealing are also discussed. The microstructure observations are accompanied by the microhardness measurements, which showed that the annealing caused a significant reduction in the microhardness values.

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Interfacial Investigation of Explosion-Welded Titanium/Steel Bimetallic Plates

Cited by 47 publications

References 49 publications

Application possibilities of scanning acoustic microscopy in the assessment of explosive welding

Application possibilities of scanning acoustic microscopy in the assessment of explosive welding

The nitriding effect on the stability and mechanical properties of the iron titan phase: first-principles investigation

TEM Observations of the Microstructural Changes in the Interfacial Zone of Explosively Welded Titanium/Steel Before and After Ex Situ and In Situ Heat Treatment

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