Effects of pre-precipitation treatment temperature on the microstructure and mechanical properties of nickel-based powder superalloy

Cai, Yunfei; Zhang, Yuanyuan; Li, Jikang; Yang, Mingsheng; Liu, Jiantao; Liu, Tong

doi:10.1016/j.intermet.2023.108059

Intermetallics

2023

DOI: 10.1016/j.intermet.2023.108059

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Effects of pre-precipitation treatment temperature on the microstructure and mechanical properties of nickel-based powder superalloy

Yunfei Cai,

Yuanyuan Zhang,

Jikang Li

et al.

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2024

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Cited by 3 publications

References 42 publications

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Nanoindentation creep mechanism of gradient ultrafine lamellar γ+Ni5Zr eutectic using electromagnetic levitation coupled with fall casting

Hui,

Li,

et al. 2024

Intermetallics

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Nanoindentation creep mechanism of gradient ultrafine lamellar γ+Ni5Zr eutectic using electromagnetic levitation coupled with fall casting

Hui,

Li,

et al. 2024

Intermetallics

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Effect of cooling rate on the Morphological changes in the secondary γ' precipitation in FGH97 nickel-based PM superalloy

Li,

Chen,

et al. 2024

Intermetallics

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Effect of Deformation-induced <i>α</i>’-martensite and Serrated Grain Boundaries on the Deformation and Fracture Behavior of 201 Austenitic Stainless Steel at Low Temperature

Khanh,

Quyen

2024

ISIJ Int.

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This study focuses on the fracture mode of 201 austenitic steel at room temperature (RT) and at − 40°C for one hour and three hours. The results reveal that at room temperature, the fracture is dominated by ductile behavior. At − 40°C, the fracture mode is a mix of ductile and brittle behavior. Type 201 austenitic stainless steel has a low stacking fault energy value (about 16 mJ.m − 2 at RT), leading to the activation of the transformation-induced plasticity (TRIP) effect. When the sample is soaked at − 40°C for three hours, deformation-induced martensite transition (DIMT) formation with the volume fraction rises significantly to 19.9%. At − 40°C for 3 hours, the alloy's impact energy absorption is reduced by 39%. The interaction of deformed austenite grains with previous austenite grain boundaries results in the formation of serrated grain boundaries in samples soaked at − 40°C. Serrated grain boundaries prevent crack propagation and reduce crack expansion at the grain boundary during the fracture of this alloy. The width of the crack at serrated grain boundaries is 38% less than that of the straight grain boundary.

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Effects of pre-precipitation treatment temperature on the microstructure and mechanical properties of nickel-based powder superalloy

Cited by 3 publications

References 42 publications

Nanoindentation creep mechanism of gradient ultrafine lamellar γ+Ni5Zr eutectic using electromagnetic levitation coupled with fall casting

Nanoindentation creep mechanism of gradient ultrafine lamellar γ+Ni5Zr eutectic using electromagnetic levitation coupled with fall casting

Effect of cooling rate on the Morphological changes in the secondary γ' precipitation in FGH97 nickel-based PM superalloy

Effect of Deformation-induced <i>α</i>’-martensite and Serrated Grain Boundaries on the Deformation and Fracture Behavior of 201 Austenitic Stainless Steel at Low Temperature

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