Effect of solution treatment temperature upon the microstructure and mechanical properties of hot rolled Inconel 625 alloy

Yang, Fei; Dong, Liming; Hu, Xiulin; Zhou, Xuefeng; Xie, Zonghan; Fang, Feng

doi:10.1007/s10853-020-04375-2

Cited by 35 publications

(3 citation statements)

References 32 publications

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“…As the solid solution temperature increases, the atomic diffusion energy increases and the element diffusion resistance decreases. As the solid solution temperature increases, the carbides in the alloy dissolve more fully [21]. The second phase carbides existing at grain boundaries have a pinning effect on grain boundaries.…”

Section: Resultsmentioning

confidence: 99%

The effect of solid solution temperature on the precipitation phase and properties of plasma arc welded joints of Inconel625 high temperature alloy

Zhang

Chu

Xiong

et al. 2022

Mater. Res. Express

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The effect of solid solution temperature on microstructure and mechanical properties of plasma welded nickel-based high temperature alloy Inconel625 was investigated by solid solution treatment. The results show that after solid solution treatment at 950 ℃, chain carbides are precipitated at the austenite grain boundary of the base material. With solid solution temperature increasing, carbon chains dissolve gradually at the grain boundary. When solution temperature is higher than 1050 ℃, carbides at the grain boundary completely melt back into the matrix. At the weld, dendritic crystal and Laves phase dissolve with the increase of solid solution temperature. When the solid solution temperature is 1100 ℃, the dendritic crystal and Laves phase at the weld completely melt into the matrix and transform into cellular crystals. When the solid solution temperature is increased to 1150 ℃, the cellular crystal grows further at the weld. When the solid solution temperature is 1100℃, the comprehensive mechanical properties of the joint are the best, the tensile strength is 742.8 MPa, almost as strong as the welded 765.3 MPa, and the elongation is 43.1%, much higher than the welded 31.9%. The fracture of the sample is the ductile fracture on the base metal side, and the impact energy is the highest everywhere in the joint.

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Section: Resultsmentioning

confidence: 99%

The effect of solid solution temperature on the precipitation phase and properties of plasma arc welded joints of Inconel625 high temperature alloy

Zhang

Chu

Xiong

et al. 2022

Mater. Res. Express

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“…Then, the contribution of each enhancement factor can be obtained by using the mixing method, which was expressed as [30]: where w Cu and w Fe are the volume fractions of Fe and Cu respectively. σ yCu is the contribution of grain and dislocation to yield strength [31]: where d Cu is the grain size of the Cu phase, k is the Hall-Patch constant, σ d is the lattice friction stress corresponding to the yield strength of a single crystal, α is the metal constant, M is the Taylor factor, G Cu is the Cu shear modulus, b is the Burgers vector, ρ represents the dislocation density. And, the relevant parameters are shown in Table 2.…”

Section: Discussionmentioning

confidence: 99%

“…Then, the contribution of each enhancement factor can be obtained by using the mixing method, which was expressed as [30]: σ y = w Cu σ yCu + w Fe σ yFe (5) where w Cu and w Fe are the volume fractions of Fe and Cu respectively. σ yCu is the contribution of grain and dislocation to yield strength [31]:…”

Section: Influence Of Sn On the Strength Of Cu-5fe Alloymentioning

confidence: 99%

Influences of Sn on Fe phase segregation and properties of Cu-5Fe alloy

Luo

Wang

Yuan³

et al. 2023

Materials Science and Technology

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The Cu-5Fe-xSn alloy was prepared, and the effect of Sn on Fe phase distribution, precipitation kinetics, and properties of the Cu-5Fe alloy were investigated. The tensile strength and conductivity of Cu-5Fe-0.15Sn after aging at 400°C were 712 MPa and 66.6% IACS, respectively. Compared to the Cu-5Fe alloy, the tensile strength increased by about 190 MPa, while the conductivity decreased by only 1.4% IACS. Sn optimises Fe distribution and inhibits dendritic segregation. After drawing, the Fe phase is transformed into Fe fibre. Sn enhances the synergistic deformation ability of Cu/Fe, resulting in better continuity and density of Fe fibres. The precipitation activation energies of Fe in Cu-5Fe and Cu-5Fe-0.15Sn alloys were 95.9 and 84.9 kJ/mol, respectively. HIGHLIGHTS The addition of Sn significantly improves the mechanical properties of Cu-5Fe alloy. Sn addition optimised the primary Fe phase distribution and increased the Fe fibre density. The addition of Sn reduces the ultimate solid solubility of Fe in Cu and promotes the nucleation of γ-Fe phase. Sn reduces the activation energy of Fe phase and promotes the precipitation of Fe phase.

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Singh¹

2022

Materials Horizons: From Nature to Nanomaterials

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Effect of solution treatment temperature upon the microstructure and mechanical properties of hot rolled Inconel 625 alloy

Cited by 35 publications

References 32 publications

The effect of solid solution temperature on the precipitation phase and properties of plasma arc welded joints of Inconel625 high temperature alloy

The effect of solid solution temperature on the precipitation phase and properties of plasma arc welded joints of Inconel625 high temperature alloy

Influences of Sn on Fe phase segregation and properties of Cu-5Fe alloy

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