Metallurgical joining of immiscible system: Pure Mg and pure Fe

Hrishikesh Das; Bharat Gwalani; Xiaolong Ma; Piyush Upadhyay

doi:10.1016/j.matchar.2022.111821

Metallurgical joining of immiscible system: Pure Mg and pure Fe

Hrishikesh Das, Bharat Gwalani, Xiaolong Ma, Piyush Upadhyay^*

^*Corresponding author for this work

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

5 Citations (Scopus)

Abstract

Understanding the metallurgical joinability of pure Mg and pure Fe and their interfacial microstructure lays the foundation for deciphering the complicated mechanism of joining various magnesium alloys and steels in applications. Pure Mg and pure Fe were successfully joined to form a metallurgical bond for the first time using the friction stir assisted scribe technique. Through detailed characterization, we found that the two immiscible metals are bonded by a critical interfacial oxide layer that spans only ~40 ± 10 nm. We present the first direct experimental evidence of the presence of an Mg/Fe oxide-rich interfacial layer using high-resolution electron microscopy and discuss the contribution of oxide formation toward a successful joining mechanism.

Original language	English
Article number	111821
Journal	Materials Characterization
Volume	187
Online published	25 Feb 2022
DOIs	https://doi.org/10.1016/j.matchar.2022.111821
Publication status	Published - May 2022
Externally published	Yes

Research Keywords

Electron backscattering diffraction (EBSD)
Friction stir assisted scribe technique (FaST)
Iron
Magnesium
Transmission electron microscopy (TEM)

Access Output

10.1016/j.matchar.2022.111821

Other Access Options

Check CityUHK Library

Permanent Link

Right click to copy link

Cite this

@article{2c8659dad9da4c14bf1dfe68665eae1e,

title = "Metallurgical joining of immiscible system: Pure Mg and pure Fe",

abstract = "Understanding the metallurgical joinability of pure Mg and pure Fe and their interfacial microstructure lays the foundation for deciphering the complicated mechanism of joining various magnesium alloys and steels in applications. Pure Mg and pure Fe were successfully joined to form a metallurgical bond for the first time using the friction stir assisted scribe technique. Through detailed characterization, we found that the two immiscible metals are bonded by a critical interfacial oxide layer that spans only ~40 ± 10 nm. We present the first direct experimental evidence of the presence of an Mg/Fe oxide-rich interfacial layer using high-resolution electron microscopy and discuss the contribution of oxide formation toward a successful joining mechanism.",

keywords = "Electron backscattering diffraction (EBSD), Friction stir assisted scribe technique (FaST), Iron, Magnesium, Transmission electron microscopy (TEM)",

author = "Hrishikesh Das and Bharat Gwalani and Xiaolong Ma and Piyush Upadhyay",

year = "2022",

month = may,

doi = "10.1016/j.matchar.2022.111821",

language = "English",

volume = "187",

journal = "Materials Characterization",

issn = "1044-5803",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - Metallurgical joining of immiscible system

T2 - Pure Mg and pure Fe

AU - Das, Hrishikesh

AU - Gwalani, Bharat

AU - Ma, Xiaolong

AU - Upadhyay, Piyush

PY - 2022/5

Y1 - 2022/5

N2 - Understanding the metallurgical joinability of pure Mg and pure Fe and their interfacial microstructure lays the foundation for deciphering the complicated mechanism of joining various magnesium alloys and steels in applications. Pure Mg and pure Fe were successfully joined to form a metallurgical bond for the first time using the friction stir assisted scribe technique. Through detailed characterization, we found that the two immiscible metals are bonded by a critical interfacial oxide layer that spans only ~40 ± 10 nm. We present the first direct experimental evidence of the presence of an Mg/Fe oxide-rich interfacial layer using high-resolution electron microscopy and discuss the contribution of oxide formation toward a successful joining mechanism.

AB - Understanding the metallurgical joinability of pure Mg and pure Fe and their interfacial microstructure lays the foundation for deciphering the complicated mechanism of joining various magnesium alloys and steels in applications. Pure Mg and pure Fe were successfully joined to form a metallurgical bond for the first time using the friction stir assisted scribe technique. Through detailed characterization, we found that the two immiscible metals are bonded by a critical interfacial oxide layer that spans only ~40 ± 10 nm. We present the first direct experimental evidence of the presence of an Mg/Fe oxide-rich interfacial layer using high-resolution electron microscopy and discuss the contribution of oxide formation toward a successful joining mechanism.

KW - Electron backscattering diffraction (EBSD)

KW - Friction stir assisted scribe technique (FaST)

KW - Iron

KW - Magnesium

KW - Transmission electron microscopy (TEM)

UR - http://www.scopus.com/inward/record.url?scp=85126466851&partnerID=8YFLogxK

UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-85126466851&origin=recordpage

U2 - 10.1016/j.matchar.2022.111821

DO - 10.1016/j.matchar.2022.111821

M3 - RGC 21 - Publication in refereed journal

SN - 1044-5803

VL - 187

JO - Materials Characterization

JF - Materials Characterization

M1 - 111821

ER -

Metallurgical joining of immiscible system: Pure Mg and pure Fe

Abstract

Research Keywords

Access Output

Other Access Options

Permanent Link

Other Files and Links

Fingerprint

Cite this