Effect of Deformation Temperature on Dynamic Recrystallization and CSL Grain Boundary Distribution of Fe-36%Ni Invar Alloy

Journal Article · Fri Jun 15 04:00:00 EDT 2018 · Journal of Materials Engineering and Performance

DOI:https://doi.org/10.1007/S11665-018-3126-Z· OSTI ID:22860484

He, Shuai; Li, Changsheng; Zheng, Jianjun; Ren, Jinyi; Han, Yahui ^[1]

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1. Northeastern University, State Key Laboratory of Rolling and Automation (China)

This paper investigated the effect of deformation temperatures on microstructure evolution and grain boundary character distribution (GBCD) of Fe-36%Ni Invar alloy during hot compression tests. The isothermal hot deformation tests were carried out in a temperature range of 850-1100 °C and a strain rate of 0.01 s{sup −1}. The grain boundary character distribution was based on the Σ3{sup n} (n = 1, 2, 3,…) coincidence site lattice (CSL) boundaries. The experimental results show that the extent of dynamic recrystallization significantly expanded at the strain rate of 0.01 s{sup −1} with the increase in temperature and this phenomenon was consistent with the evolution tendency of Σ3{sup n} boundaries. To some degree, the increasing proportion of typical low-ΣCSL boundaries, especially the increasing trend of Σ3, positively promoted the wider process of dynamic recrystallization.

• OSTI ID: 22860484
• Journal Information: Journal of Materials Engineering and Performance, Journal Name: Journal of Materials Engineering and Performance Journal Issue: 6 Vol. 27; ISSN 1059-9495; ISSN JMEPEG
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
DEFORMATION
DISTRIBUTION
ELECTRON DIFFRACTION
GRAIN BOUNDARIES
INVAR
IRON COMPOUNDS
NICKEL COMPOUNDS
RECRYSTALLIZATION
STRAIN RATE
TEMPERATURE RANGE 1000-4000 K