Effect of Cooling Rate and Aging on Microstructure and Tensile Properties of TC21 Titanium Alloy. | ||
| The Bulletin Tabbin Institute for Metallurgical Studies (TIMS) | ||
| Volume 107, Issue 1, 2018, Pages 1-11 PDF (968.6 K) | ||
| Document Type: Original research papers | ||
| DOI: 10.21608/tims.2018.198120 | ||
| Authors | ||
| K. M. Ibrahim1; A. F. Barakat2; R. N. Elshaer* 1; R. R. Abbas2 | ||
| 1Central Metallurgical R & D Institute, Cairo, Egypt | ||
| 2Faculty of Engineering, Helwan University, Cairo, Egypt. | ||
| Abstract | ||
| TC21 titanium alloy was investigated. The samples were solution treated at 900°C for 15 min followed by cooling either/ water quenching (WQ) or air cooling (AC). Consequently, aging treatment was applied at 575°C for 4 hr. The results showed that heat-treatment parameters (cooling rate and aging treatment) had influenced the feature and content of α phase, β phase and secondary α phase. Optimum heat treatment process of TC21 titanium alloy was obtained by treatment at 900°C/ 15 min/ AC + 575°C/ 4 hr/ AC. Under this treatment condition, better combination of hardness and tensile properties was achieved. | ||
| Keywords | ||
| TC21 titanium alloy; cooling rate; aging; microstructure; tensile properties | ||
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