科创中国

The role of oxide-scale microtexture on tribological behaviour in the nanoparticle lubrication of hot rolling

• 摘要：

  Electron backscatter diffraction (EBSD) of the microtexture in the tertiary oxide scale after hot rolling were investigated. The surface asperity flattening and grain refinement of Fe₃O₄ were produced at a thickness reduction of 28% and a cooling rate of 28 °C/s. Microtexture development of Fe₃O₄ manifests as a strong θ fibre parallel to oxide growth, including the {100}<001> and {001}<110> textured components, whereas the {0001}〈101〉0> component dominates in α-Fe₂O₃ as the favoured basal slip. The tribological effect of α-Fe₂O₃ at the contact surface of steel and rolls was considered at low and high thickness reductions. The propagation of cracks along the Fe₃O₄ grain boundaries could create a dish to collect nanoparticles during lubrication and thereby changed the wear rates.

• 作者：

  Xianglong Yu;Zhengyi Jiang;Jingwei Zhao;Dongbin Wei;济 周;Cunlong Zhou;庆学 黄

• 刊名：

  Tribology International

• 在线出版时间：

  2016-1-1