Observation of Inclusions in the Steel Using Partial Acid Extraction and SEM
Inclusions in an Al-killed steel were extensively observed through optical microscope and SEM. Partial acid extraction was used to reveal the 3-dimensional morphology of inclusions. Different precipitated phases inside inclusions were analyzed. During the partial acid extraction, only the Fe-matrix reacted with the acid, and A1203-based inclusions did not react with the acid. The main inclusions in the current Al-killed steel were mainly 5-200im A1203-based inclusions with different morphologies. The current work indicated that partial acid extraction is an efficient method to study the real 3-dimensional morphology and composition of inclusions in steel.
L. Shusen et al., "Observation of Inclusions in the Steel Using Partial Acid Extraction and SEM," Materials Science and Technology Conference and Exhibition, MS&T'08, The Minerals, Metals & Materials Society (TMS), Jan 2008.
Materials Science and Engineering
Keywords and Phrases
Inclusions; Morphology; Partial Acid Extraction; Steel
Article - Conference proceedings
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