Microstructure and mechanical property evaluation of diffusion-bonded joints made between SAE 2205 steel and AISI 1035 steel

Vigraman, T.; Narayanasamy, R.; Ravindran, D.

doi:10.1016/j.matdes.2011.09.063

Cited by 53 publications

(19 citation statements)

References 33 publications

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“…It is obviously to see that the primary distribution of grain boundary is decreased substantially and some amounts of eutectic carbides dissolve in the matrix. It means that the primary grain boundaries have distinctly pinning effect on growth of grain size in the heat treated condition [12]. The heat treated structures of the thixojoined parts only show improved contrast between solid and liquid phases, whereby the big solids appeared in little liquid matrix.…”

Section: Microstructure and Joint Qualitymentioning

confidence: 99%

“…The thixoweld joint was characterised by visible full penetration that indicate perfect thixojoning between base blank and the insert along the bounding border. Higher amount of the interfacial reactions has been produced between two base metals [12]. The structure is distinguished by two features that can be determined by grain direction, as illustrated in arrows direction in Figure 7.…”

Section: Microstructure and Joint Qualitymentioning

confidence: 99%

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Microstructure and Mechanical Properties of Thixowelded AISI D2 Tool Steel

Mohammed

Omar

Al-Zubaidi

et al. 2018

Metals

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Rigid perpetual joining of materials is one of the main demands in most of the manufacturing and assembling industries. AISI D2 cold work tool steels is commonly known as non-weldable metal that a high quality joint of this kind of material can be hardly achieved and almost impossible by conventional welding. In this study, a novel thixowelding technology was proposed for joining of AISI D2 tool steel. The effect of joining temperature, holding time and post-weld heat treatment on microstructural features and mechanical properties were also investigated. Acceptable joints without defect were achieved through the welding temperature of 1300 • C, while the welding at lower temperature resulted in a series of cracks across the entire joint that led to spontaneous fracture after joining. Tensile test results showed that maximum joint tensile strength of 271 MPa was achieved at 1300 • C and 10 min holding time, which was 35% of that of D2 base metal. Meanwhile, tensile strength of the joined parts after heat treatment showed a significant improvement over the non-heat treated condition with 560 MPa, i.e., about 70% of that of the strength value of the D2 base metal. This improvement in the tensile strength attributed to the dissolution of some amounts of eutectic chromium carbides and changes in the microstructure of the matrix. The joints are fractured at the diffusion zone, and the fracture exhibits a typical brittle characteristic. The present study successfully confirmed that by avoiding dendritic microstructure, as often resulted from the fusion welding, high joining quality components obtained in the semi-solid state. These results can be obtained without complex or additional apparatuses that are used in traditional joining process.

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Section: Microstructure and Joint Qualitymentioning

confidence: 99%

Section: Microstructure and Joint Qualitymentioning

confidence: 99%

Microstructure and Mechanical Properties of Thixowelded AISI D2 Tool Steel

Mohammed

Omar

Al-Zubaidi

et al. 2018

Metals

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“…Somekawa et al 10 indicated that an increase in pressure obviously led to void shrinkage in the bonding interface of superplastic AZ31 alloy joints. Vigraman et al 11 proposed that a void free interface was easily formed at a higher temperature during the diffusion bonding processes of SAE 2205 steel AISI 1035 steel bimetal, leading to a significant increase in shear strength. Meanwhile, some theoretical models for void shrinkage, including Hill and Wallach's model, 12 Lagos and Retamal's model, 13 Ma's model 14 and so on, had been carried out to quantify the kinetics during the bonding process and to predict the time for achieving a sound joint without interfacial voids.…”

Section: Introductionmentioning

confidence: 99%

Formation mechanisms of high quality diffusion bonded martensitic stainless steel joints

Zhang

2015

Science and Technology of Welding and Joining

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Diffusion bonding of martensitic stainless steel was conducted at different times. Based on the interface characteristic and shear strength, bonding mechanisms were discussed. Results showed that the bonding quality was controlled by void shrinkage and interface grain boundary migration. Large voids with scraggly edges changed to small voids with smooth edges, leading to an increase in interface bonding ratio. Two cases of interface grain boundary migration were revealed: interface grain boundary migration at the triple junction induced by the reduction in grain boundary energy and strain induced interface grain boundary migration resulted from the stored energy. Owing to the void shrinkage and interface grain boundary migration, the shear strength of the joint matched that of the base material.

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“…Several authors have reported the feasibility of bonding dissimilar metals with interlayer materials to improve physical and metallurgical properties. For example, Dr. R. Narayanasamy et al have reported several researches on bonding method with the interlayer, one of which is the solid state bonding of AISI 304L steel and low-carbon steel with AISI 304L as the interlayer [9][10][11]. We started the bonding technology development by designing an interlayer, amorphous W-Fe coated copper foil, to join W and W-10 wt% Cu composite (W-10Cu) via hot pressing (HP) method.…”

Section: Introductionmentioning

confidence: 99%