Structural Modification of α-Ti Based Alloy after Submission to Open Flame Thermal Shock

Abstract:

Ti alloys are applied extensively in several fields, particularly in the aerospace, chemical, dental and medical industries, due to their outstanding properties. Microstructure changes in commercial-purity titanium (CP-Ti) during open flame thermal shock and X-ray analysis were investigated. Water quenching of compact Cp-Ti has yielded martensitic-type laths and fishbone-type twinned microstructures. The microstructure of cast samples displays a martensitic structure and heat-treated samples shows a microstructure composed of α/α^‘phase. Several types of phases and crystallographic lattice were detected using XRD. Samples investigated were supposed to a heating over than 1500°C and cooled in two ways: by air and by water. SEM images are taken in comparison for studying the morphology and microstructure of alloys.

• Periodical: Key Engineering Materials (Volume 638)
• Pages: 333-338
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.638.333
• Online since: March 2015
• Authors: Bogdan Istrate, Carmen Iulia Crimu, Corneliu Munteanu*, Carmen Biniuc, Laura Geanina Pintilei, Sorin Iacob Strugaru, Petru Avram, Kamel Earar
• Keywords: Cp-Ti, SEM, Thermal Shock, XRD

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