Microstructural characterization of γ′ precipitates and their influence on the properties of Ni-Span C Elinvar alloy

Qin, Feng; Lu, Fengshuang; Zhao, Xiaohu

doi:10.1016/j.matchar.2018.12.015

Cited by 5 publications

(1 citation statement)

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“…During the aging process of the 40NiCrTiAl alloy, the main precipitate phase was the γ' phase. The precipitate phase γ' is the most significant strengthening phase in this alloy, and controlling the type and content of the γ' phase was the primary method used to achieve the adjustment of the temperature coefficient of Young's modulus [8].…”

Section: Influence Of Aging Temperature On Precipitationmentioning

confidence: 99%

Influence of Heat Treatment on Elinvar Properties of a 40NiCrTiAl Alloy

Yang,

Xu,

Wang

et al. 2024

J. Phys.: Conf. Ser.

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This study investigates the effect of heat treatment on the microstructure and Elinvar properties of a cold-rolled 40NiCrTiAl alloy. This study utilizes optical microscopy, scanning electron microscopy backscattered electron imaging, secondary electron imaging, and energy-dispersive X-ray spectroscopy analysis to observe the precipitation behavior and determine the composition within the material. The results show that the 40NiCrTiAl Elinvar alloy at aging temperatures of 600-700°C, spherical precipitates appear within the grains. At approximately 700°C and with an aging time of around 2 hours, the precipitate volume reaches a peak, and the Young’s modulus and Elastic modulus temperature coefficient also reach their respective peaks. These elastic performance indicators exhibit a strong linear relationship with the degree of precipitate formation. These findings are important for a deeper understanding of the application potential and performance optimization of this Elinvar alloy.

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Section: Influence Of Aging Temperature On Precipitationmentioning

confidence: 99%