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Research on Heat-Resistant and Wear Resistant Liner Alloy

Author: LiKai
Tutor: WuJianJun
School: Hebei University of Technology
Course: Materials Science
Keywords: orthogonal experiment Fe-Al alloy high temperature oxidation hardness wear resistancece
CLC: TG135.6
Type: Master's thesis
Year: 2011
Downloads: 59
Quote: 0
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Abstract


The liner of coke tank is very important in producing coke, and it is easily oxidized anddamaged in atrocious working conditions, so good high temperature oxidation resistance,good high temperature strength, good wear resistancece and good thermal shock resistanceare required. Liner material mainly is 2Cr13. 2Cr13 shows better oxidation resistance onlywhen the temperature is below 650℃. Alloying elements are added into Fe-Al alloy asmaterial of liner to reach the performance required in this paper.Al, Cr and B were used as alloying elements and orthogonal experiment was used tooptimized the content of the new alloy. The results showed that the high temperatureoxidation resistance is influenced significantly by Al content. Fe2B appeared in ferrite alloycontaing boron, no second phase existed in the alloys containg Al and Cr. The rate ofoxidation decreased as the content of Al and Cr increasing. The hardness and the wearresistancece of the alloy improved as Al and Cr increasing. The oxidation rate increased asthe content of B increasing. The hardness and the wear resistancece became improvedobviously as B increasing.The new alloy can be substituted for the primary liner material.

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CLC: > Industrial Technology > Metallurgy and Metal Craft > Metallurgy and Heat Treatment > The alloy learn with a variety of properties of alloys > Special mechanical properties of alloy > Wear-resistant alloy
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