Short-time beta grain growth kinetics for a conventional titanium alloy

Journal Article · Wed May 01 04:00:00 EDT 1996 · Acta Materialia

DOI:https://doi.org/10.1016/1359-6454(95)00311-8· OSTI ID:247951

Semiatin, S L ^[1]; Soper, J C ^[2]; Sukonnik, I M ^[3]

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1. WL/MLLN, Wright-Patterson AFB, OH (United States). Materials Directorate
2. Wright State Univ., Dayton, OH (United States)
3. Texas Instruments, Attleboro, MA (United States)

The kinetics of beta grain growth during short-time, supertransus heat treatment of Ti-5Al-4V were determined using a salt-pot technique. The finite-time, subtransus temperature transient during salt-pot heating was quantified through measurements of the heat transfer coefficient characterizing conduction across the salt-titanium interface and a simple heat conduction analysis which incorporated this heat transfer coefficient. Grain size versus time data adjusted to account for the subtransus temperature transient were successfully fit to the parabolic grain growth law d{sup n} {minus} d{sub 0}{sup n} = kt exp({minus}Q/RT) using an exponent n equal to 2.0. Comparison of the present results to rapid, continuous heat treatment data in the literature for a similar titanium alloy revealed a number of semi-quantitative similarities.

• OSTI ID: 247951
• Journal Information: Acta Materialia, Journal Name: Acta Materialia Journal Issue: 5 Vol. 44; ISSN XZ504Y; ISSN 1359-6454
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
ACTIVATION ENERGY
ALUMINIUM ALLOYS
GRAIN GROWTH
GRAIN SIZE
HEAT TRANSFER
HEAT TREATMENTS
INTERFACES
TEMPERATURE GRADIENTS
THERMAL CONDUCTIVITY
TIME DEPENDENCE
TITANIUM BASE ALLOYS
VANADIUM ALLOYS