Studying inhomogeneous deformation of bainite-retained austenite steel during cold drawing

Yu, Zhichen; Mi, Zhenli; Guo, Jun; Gong, Na

doi:10.1088/2053-1591/aad850

Cited by 1 publication

(1 citation statement)

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“…During the cold rolling reduction stage, external forces promote the dissolution of carbides into ferrite grains, and complete austenitization is carried out during the subsequent 850 ℃ process. Furthermore, the content of residual austenite and carbon content increases [30]. Finally, it can be seen in that after cold rolling reduction, the large-sized carbides are reduced and the distribution of carbides is uniform.…”

Section: Discussionmentioning

confidence: 87%

Effect of prior cold rolling on the dry wear performance of GCr15 bearing steel with multiphase microsturcture

Qian,

Li,

Wang

et al. 2024

Preprint

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In this work, the effect of cold rolling on the wear performance of GCr15 bearing steel with multiphase microstructure has been investigated. The microstructural observation shows that prior cold rolling facilitates to the dissolution of carbides into prior austenite, reduction of the large-scale carbides and refinement of martensitic lath. In addition, with the increase of cold rolling reduction, the residual austenite content is increased after multiphase heat treatment due to the carbon enrichment in austenite induced by increasing dissolution of carbides. The wear results indicates that friction coefficient as well as wear quality distinctly decreases with the increase of rolling reduction. There are fewer plow grooves and peeling pits on the wear marks after 40% cold rolling reduction. It is also found that the transformation of martensite from residual austenite induced by frictional stress increases the surface compressive stress and hardness for the rolled specimens. This transformation effectively diminishes the depth of plow grooves and reduces the number of peeling pits, which finally leads to the enhancement of dry wear resistance.

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Section: Discussionmentioning

confidence: 87%