高耐磨 Al2O3-SiO2-ZrO2 陶瓷内衬复合钢管制备研究

Translated title of the contribution: Preparation of Al2O3-SiO2-ZrO2 Ceramic Lined Composite Steel Pipe with High Wear Resistance

Yi Yang, Yuhua Pang, Qi Sun, Weiwei He, Dong Liu

Research output: Contribution to journalArticlepeer-review

Abstract

In view of the fracture of sucker pipe due to the low toughness and low wear resistance, in order to prepare the ceramic-lined composite steel pipe with promising comprehensive performance, a self-propagating high-temperature synthesis (SHS) was explored to develop Al2O3-SiO2-ZrO2 system ceramic-lined steel pipe. The main phase of the ceramic layer is α-Al2O3, while FeAl2O4, Al2SiO5 and ZrO2 are present as minor phases, when the content of ZrO2 is in the range of 1-3 wt.%. Meanwhile, the crystal grain aspect ratio is significantly increased and the toughness is significantly enhanced. Steel/ceramics are composited through mechanical and diffusion mechanisms, with a interface compression shear strength of 10.46 MPa. With 2 wt.% SiO2 and 3 wt.% ZrO2, the relative density of the ceramics layer can be increased to 92.86%. In this case, the hardness can reach 1667 HV, the degree of wear can be reduced to 7.0 mg/h and the fracture toughness can reach 9.28

Translated title of the contributionPreparation of Al2O3-SiO2-ZrO2 Ceramic Lined Composite Steel Pipe with High Wear Resistance
Original languageChinese (Traditional)
Pages (from-to)295-300
Number of pages6
JournalJournal of Ceramics
Volume42
Issue number2
DOIs
StatePublished - 2021

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