Microstructure controlling technology and mechanical properties relationship of titanium alloys for aviation applications

ZHU Zhishou; SHANG Guoqiang; WANG Xinnan; ZHU Liwei; LI Jing; LI Mingbing; XIN Yunpeng; LIU Gechen

doi:10.11868/j.issn.1005-5053.2020.000086

Journal of Aeronautical Materials (Jun 2020)

Microstructure controlling technology and mechanical properties relationship of titanium alloys for aviation applications

ZHU Zhishou,
SHANG Guoqiang,
WANG Xinnan,
ZHU Liwei,
LI Jing,
LI Mingbing,
XIN Yunpeng,
LIU Gechen

Affiliations

ZHU Zhishou: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
SHANG Guoqiang: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
WANG Xinnan: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
ZHU Liwei: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
LI Jing: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
LI Mingbing: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
XIN Yunpeng: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China
LIU Gechen: Key Laboratory of Advanced Titanium Alloys，AECC Beijing Institute of Aeronautical Materials，Beijing 100095，China

DOI: https://doi.org/10.11868/j.issn.1005-5053.2020.000086
Journal volume & issue: Vol. 40, no. 3
pp. 1 – 10

Abstract

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Because of the variety and complexity of solid-state phase transformation characteristics of titanium alloys, the relationship between their microstructure and performance has always been one of the hot topics in the field of titanium alloy materials science. By adjusting the composition, processing technology and heat treatment process parameters of titanium alloys, the microstructure type and parameters of titanium alloy parts can be adjusted to a certain extent to achieve the best matches in strength, plasticity, toughness, fatigue and fatigue crack propagation rate, etc. In this paper, based on the comparison of four typical microstructure characteristics including equiaxed microstructure, bimodal microstructure, lamellar microstructure, basket weave microstructure and their thermo-mechanical controlling technologies, taking the TC21 titanium alloy, TC4-DT titanium alloy, TC32 titanium alloy and TB17 titanium alloy for aviation use as examples to review the properties of strength, plasticity, fracture toughness, fatigue life and fatigue crack propagation rate, which can provide a reference basis for reasonably choosing microstructure parameters, optimizing properties, stabilizing mass production quality of titanium alloy products.

Published in Journal of Aeronautical Materials

ISSN: 1005-5053 (Print)
Publisher: Journal of Aeronautical Materials
Country of publisher: China
LCC subjects: Technology: Motor vehicles. Aeronautics. Astronautics
Website: http://jam.biam.ac.cn/indexen.htm

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