Title

Observation of Inclusions in the Steel Using Partial Acid Extraction and SEM

Abstract

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.

Department(s)

Materials Science and Engineering

Keywords and Phrases

Inclusions; Morphology; Partial Acid Extraction; Steel

Document Type

Article - Conference proceedings

Document Version

Citation

File Type

text

Language(s)

English

Rights

© 2008 The Minerals, Metals & Materials Society (TMS), All rights reserved.

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