Enhancement of pearlite transformation by Warm Rolling in 1.0C-1.5Cr Steel. Issue 13 (1st September 2020)

• Record Type: Journal Article
• Authors: Zhao, Xiao-Yu; Zhao, Xian-Ming; Han, Huai-Bin; Dong, Chun-Yu; Yang, Yang
• Is Part Of: Materials science and technology. Volume 36:Issue 13(2020)
• Page Start: 1431
• Page End: 1439
• Publication Date: 2020-09-01
• Subjects: Pearlite transformation -- warm rolling -- intragranular nucleation -- critical cooling rate; Materials science -- Periodicals; Microstructure -- Periodicals; Metallurgy -- Periodicals; 620.1105
• DOI: 10.1080/02670836.2020.1790096
• Languages: English
• ISSNs: 0267-0836

Abstract

Abstract : Isothermal and non-isothermal pearlite transformations under 840°C warm-rolled and 950°C hot-rolled were researched. It was found that the pearlite nuclei at grain boundary and defects were increased by warm deformation. The results showed that the incubation time was shortened in the isothermal pearlite transformation and the volume fraction of pearlite was increased in continuous cooling condition by warm deformation. The pearlite transformation behaviour under continuous cooling condition was predicted by the formula of Umemoto. The critical cooling rates of the fully pearlite structures formed under warm deformation condition and hot deformation condition were calculated.