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A Study of ordering behavior of a Ni-Mo-Cr-Re alloy

Pingli Mao, Yan Xin

2023ennickel alloysmechanical propertiesaging behaviorcold workheat treatment

Abstract

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This paper describes our recent work on enhancement of mechanical properties of Ni-alloys by optimization of alloys additions, cold work and heat treatment conditions. Hardness test, tensile testing, and microscopy examinations map the influence of alloy additions, cold work and annealing condition on the aging behavior of this Ni-alloy. An additional refractory element to the alloy accelerated the ordering precipitate kinetics significantly in comparison to classic Ni-alloys. The hardness value increases from 200 HV for annealed samples to around 300 HV for samples aged for less than 10 min at 600 oC, and then leveled off to 114 hours. Cold work speeds up the nucleation rate of the ordered phase but decreases the precipitates size. When cold deformation increases from 41% to 69%, the average size of Ni2Mo precipitates decreases from 6.5nm to 4.6nm for the major axis and from 3.5nm to 2.6nm for minor axis for samples aged at 600oC for 4 hours.

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@article{57682420-7a20-4c31-b45f-be385922f806,
  title={A Study of ordering behavior of a Ni-Mo-Cr-Re alloy},
  author={Pingli Mao and Yan Xin},
  year={2023},
  language={en}
}
TY  - JOUR
TI  - A Study of ordering behavior of a Ni-Mo-Cr-Re alloy
AU  - Pingli Mao
AU  - Yan Xin
PY  - 2023
LA  - en
ER  -

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