Experimental and theoretical study for hot corrosion behavior of network structured TiBw/TA15 composite with NaCl film at 800 ℃
Source abstract
Abstract
The hot corrosion behavior of network structured TiB w/TA15 composite with NaCl film at 800 ℃ was investigated. After the 100 h test, the mass change was 50.13 mg cm −2 and 400 µm scale with obvious pores and cracks formed on the substrate, which mainly composed by TiO 2 and Al 2O 3 with a few Na 2TiO 3, NaAlO 2 and Ti/Al chlorides. The adsorption of Cl atom on α-Ti (0001) and α-Ti (0001)-Al surfaces was studied by density functional theory. Chlorination-oxidation circulation was the main reason of the severe hot corrosion. Cracks and holes were mainly caused by the escape of high vapor pressure Ti/Al chlorides and thermal stress resulting from the rapid growth of the hot corrosion scale. In addition, approaches for improving the hot corrosion resistance were discussed.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Aluminum Alloys Composites Properties · Intermetallics and Advanced Alloy Properties · MXene and MAX Phase Materials
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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