Influence of copper on the structure and mechanical properties of pearlitic steels

Izotov, V. I.; Ilyukhin, D. S.; Getmanova, M. E.; Филиппов, Г. А.

doi:10.1134/s0031918x16040074

Cited by 3 publications

(2 citation statements)

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“…It was shown [12][13][14]16 that a secondary ordering of carbon interstitials may occur within the Zener sublattice during martensite aging, prior to the detection of ǫ-or ǫ ′ -carbide. These results have been interpreted in terms of the formation of the Fe 4 C phase with a considerable deviation from stoichiometric composition.…”

Section: Introductionmentioning

confidence: 99%

Elastic and Magnetic Properties of Cubic Fe4C from First-Principles

Rahman

Jan

2017

J Supercond Nov Magn

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Section: Introductionmentioning

confidence: 99%

Elastic and Magnetic Properties of Cubic Fe4C from First-Principles

Rahman

Jan

2017

J Supercond Nov Magn

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“…Cu in an austenitic matrix can be precipitated as finely dispersed Cu-rich phase particles during the aging process, which has an excellent dispersion-strengthening effect. Cu atoms segregated to stacking faults can also pin dislocations and induce a matrix-strengthening effect [ 12 , 13 , 14 , 15 ]. (2) Improvement of formability and processability of steels: Cu can improve the anisotropy of steel and reduce the work hardening index.…”

Section: Introductionmentioning

confidence: 99%

Effect of Cu on the Formation of Reversed Austenite in Super Martensitic Stainless Steel

Jiang

Zhao

2023

Materials

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We investigated the effect of Cu on the formation of reversed austenite in super martensitic stainless steel by using X-ray diffraction (XRD), a transmission electron microscope (TEM) and an energy-dispersive spectrometer (EDS). Our results showed that the microstructure of the steels comprised tempered martensite and diffused reversed austenite after the steels were quenched at 1050 °C and tempered at 550–750 °C. The volume fraction of reversed austenite in the steel with 3 wt.% of Cu (3Cu) was more than that with 1.5 wt.% of Cu (1.5Cu). The transmission electron microscope results revealed that the reversed austenite in 1.5Cu steel mainly had the shape of a thin strip, while that in 3Cu steel had a block shape. The nucleation points and degree of Ni enrichment of reversed austenite in 3Cu steel were higher than those in 1.5Cu steel. The reversed austenite was more likely to grow in ε-Cu enriched regions. Therefore, Cu can promote reversed austenite nucleation and growth. The mechanical properties of 3 Cu steel are obviously better than those of 1.5Cu steel when tempered at 550–650 °C.

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