MICROSTRUCTURAL EVALUATION OF TI-6A 1-4V ALLOY DURING HOT
DEFORMATION

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FARMANESH KH.; NAJAFIZADEH A.

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Journal: ESTEGHLAL Year:2004 | Volume:23 | Issue:1 Page(s): 189-202

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Information Journal Paper

Title

MICROSTRUCTURAL EVALUATION OF TI-6A 1-4V ALLOY DURING HOT DEFORMATION

Author(s)

FARMANESH KH. | NAJAFIZADEH A. | Issue Writer Certificate

Keywords

THERMOMECHANICAL PROCESSINGQ4

ISOTHERMAL HOT DEFORMATIONQ3

TI-6AI-4VAILOYQ2

DIIATOMETERYQ4

Abstract

Among the titanium alioys, Ti-6AI-4V is the most widely used. In the present work, the uniaxial hot compressive behavior of Ti-6Al-4 V has been investigated under constant strain rates. A series of dilatometery experiments were carried out to determine the transformation temperatures at different cooling rates. Specimens were homogenized at 1050 °C for 10 minutesfallowed byfast cooling to different straining temperatures from 1050 to 850°C. The cooling rate was chosen fast enough to prevent high temperature transformation during cooling. A series of isothermal compression tests were conducted at different temperatures of850, 900, 950, 1000, 1050°C at constant true strain rates of 0.1, 0.01 and 0.001 s-1, respectively. Sampies were uniaxialy compressed to a true strain of 0.55 followed by water quenching to room temperature. The apparent activation energy for compression in two phase regions was caiculated at 840 KJmol-1. The partiai globular/zation of a phase was observed in the specimens deformed at low strain rates and at temperatures near the transformation zone followed by annealing.

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APA: Copy

FARMANESH, KH., & NAJAFIZADEH, A.. (2004). MICROSTRUCTURAL EVALUATION OF TI-6A 1-4V ALLOY DURING HOT DEFORMATION. ESTEGHLAL, 23(1), 189-202. SID. https://sid.ir/paper/5991/en

Vancouver: Copy

FARMANESH KH., NAJAFIZADEH A.. MICROSTRUCTURAL EVALUATION OF TI-6A 1-4V ALLOY DURING HOT DEFORMATION. ESTEGHLAL[Internet]. 2004;23(1):189-202. Available from: https://sid.ir/paper/5991/en

IEEE: Copy

KH. FARMANESH, and A. NAJAFIZADEH, “MICROSTRUCTURAL EVALUATION OF TI-6A 1-4V ALLOY DURING HOT DEFORMATION,” ESTEGHLAL, vol. 23, no. 1, pp. 189–202, 2004, [Online]. Available: https://sid.ir/paper/5991/en

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