Solid State Diffusion Bonding of X70 Steel to Duplex Stainless Steel

Boumerzoug, Zakaria; Baghdadi, Lamia; Brisset, François; Solas, Denis; Baudin, Thierry

doi:10.36547/ams.28.2.1504

Cited by 4 publications

(6 citation statements)

References 21 publications

(24 reference statements)

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“…This result confirms the effect of extending the holding time on the bonding process, which strengthens the bond between the two dissimilar materials. Interdiffusion of elements across the interface during solid state diffusion bonding was also observed in our previous study of the two bonded dissimilar steels [24].…”

Section: Eds Analysissupporting

confidence: 77%

Solid State Diffusion Bonding of Alumina with Aluminum Alloy

Chettah,

Hamdi,

Boumerzoug

et al. 2024

Int. J. Automot. Mech. Eng.

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The objective of this work is to study the effect of time during the bonding process of alumina with an industrial aluminum 6060 alloy by the technique of solid-state welding at 600°C. Optical microscopy, scanning electron microscopy with energy dispersive spectroscopy, corrosion tests, and microhardness measurements were used as characterization techniques. The extended time during the bonding process had an effect on the microstructure of the interface and its mechanical properties. Oxygen diffusion was detected across the aluminum alloy/alumina interface. A recrystallization reaction developed on the aluminum side during the bonding process, which affected the aluminum alloy hardness values. By bonding metal to ceramic, it allows the use of ceramics in automotive engines to reduce weight, increase thrust-to-weight ratio and operating temperature, and improve working efficiency.

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Section: Eds Analysissupporting

confidence: 77%

Solid State Diffusion Bonding of Alumina with Aluminum Alloy

Chettah,

Hamdi,

Boumerzoug

et al. 2024

Int. J. Automot. Mech. Eng.

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“…According to the literature, there were studies on welding of stainless steel to carbon steel using different techniques of welding such as arc welding [2], laser welding [3], solid state diffusion welding [4], and friction welding [5]. Among the widely used stainless steels is duplex stainless steel which for some industrial connections is welded to ordinary steel.…”

Section: Introductionmentioning

confidence: 99%

“…The main processes used to join duplex stainless steels to carbon steels were explosive welding [9], solid state diffusion welding [4], or tungsten welding under inert gas [10,11]. Welding of duplex stainless steels to carbon steel by arc welding needs more investigation, because limited research work were published.…”

Section: Introductionmentioning

confidence: 99%

Effect of heat treatment on the welded joint of X70 steel joined to duplex stainless steel by gas tungsten arc welding

Beziou

Hamdi

Boumerzoug

et al. 2023

Int J Adv Manuf Technol

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The objective of this work is to study the microstructure and the texture evolution in welded joint of X70 steel with duplex stainless steel joined by gas tungsten arc welding (GTAW) process and heat treated at 200 °C and 600 °C. Then, the microstructural evolutions are correlated to their hardness mechanical property. The characterization techniques used are optical microscopy, scanning electron microscopy, EDS, Vickers microhardness, tensile tests, X-ray diffraction, and electron backscatter diffraction (EBSD) technique. Two heat affected zones were observed in welded joint with different microstructures. Heat affected zone on the X70 steel side and another on the duplex stainless steel side. A solidification microstructure was observed in the fusion zone such elongated ferritic grains and a growth direction < 100 > was found. The most microstructural transformations were observed in the vicinity of the interface which connects the heat affected zone to the fusion zone either on the X70 steel side or on the duplex stainless steel side. The effect of heat treatment on the hardness of the welded joint was noticed in the side of the duplex stainless steel. The fusion zone is the hardest zone of the welded joint (309.4 Hv) and which is not affected by the applied heat. X-ray diffraction analysis did not reveal the formation of new phases after the heat treatments applied to the welded joint. The tensile tests have shown that the welded joint treated at 200 C presents the highest value of ultimate tensile strength (667 MPa).

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“…The main principle of SSDB is based on the interatomic diffusion across the interface of the two metals or metal alloys. SSDB is usually carried out in the temperature range of 50–80% of the absolute melting point of the base metal. , Generally, three parameters that influence the diffusion bonding process are temperature, pressure, and time. , High pressure brings the bonding surfaces into close contact, and elevated temperature produces a high degree of molecular activity, resulting in grain formation across the interface. Since the process is not instinctive, an optimum bonding time is required to produce strong joints.…”

Section: Introductionmentioning

confidence: 99%

“…SSDB is usually carried out in the temperature range of 50–80% of the absolute melting point of the base metal. 11 , 12 Generally, three parameters that influence the diffusion bonding process are temperature, pressure, and time. 13 , 14 High pressure brings the bonding surfaces into close contact, and elevated temperature produces a high degree of molecular activity, resulting in grain formation across the interface.…”

Section: Introductionmentioning

confidence: 99%

Impact of Bonding Temperature on Microstructure, Mechanical, and Fracture Behaviors of TLP Bonded Joints of Al2219 with a Cu Interlayer

Vatnalmath,

Auradi,

et al. 2023

ACS Omega

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The present study aims at producing transient liquid phase (TLP) bonded Al2219 joints with pure Cu (copper) as an interlayer. The TLP bonding is carried out at the bonding temperatures in the range of 480 to 520 °C while keeping the bonding pressure (2 MPa) and time (30 min.) constant. Reaction layers are formed at the Al-Cu interface with a significant increase in diffusion depth with the increase in the bonding temperature. The microstructural investigations are carried out using scanning electron microscopy and energy-dispersive spectroscopy. X-ray diffraction study confirms the formation of CuAl2, CuAl, and Cu9Al4 intermetallic compounds across the interface of the bonded specimens. An increase in microhardness is observed across the bonding zone with the increase in the bonding temperature, and a maximum hardness value of 723 Hv is obtained on the diffusion zone of the specimen bonded at 520 °C. Furthermore, the fractography study of the bonded specimens is carried out, and a maximum shear strength of 18.75 MPa is observed on the joints produced at 520 °C.

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Solid State Diffusion Bonding of X70 Steel to Duplex Stainless Steel

Cited by 4 publications

References 21 publications

Solid State Diffusion Bonding of Alumina with Aluminum Alloy

Solid State Diffusion Bonding of Alumina with Aluminum Alloy

Effect of heat treatment on the welded joint of X70 steel joined to duplex stainless steel by gas tungsten arc welding

Impact of Bonding Temperature on Microstructure, Mechanical, and Fracture Behaviors of TLP Bonded Joints of Al2219 with a Cu Interlayer

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