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The Influence of Heat Treatment on the Tensile Creep Life of the TC25 Titanium Alloy
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The Influence of Heat Treatment on the Tensile Creep Life of the TC25 Titanium Alloy
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Journal Article
The Influence of Heat Treatment on the Tensile Creep Life of the TC25 Titanium Alloy
2024
Overview
High-temperature titanium alloys are significant materials in the aerospace field, and their service life largely depends on creep aging. However, the creep behavior of the TC25 titanium alloy at high temperatures has not been reported. Here, the creep behavior of TC25 before and after heat treatment at 550 °C under different stresses was investigated. It was found that heat treatment significantly enhanced the creep resistance of the TC25 alloy. An increase in creep stress increased the steady-state creep rate and reduced creep life. The smooth αp/βtrans grain boundaries and refined αs improved creep resistance, and the creep mechanism changed from grain boundary sliding to dislocation climbing after heat treatment. This research provides theoretical data support for the application of the TC25 alloy at high temperatures.
Publisher
MDPI AG
Subject
/ Titanium
