Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/19212
Title: Influence of Titanium Diboride Particle Size on Structure and Mechanical Properties of an Al-Mg Alloy
Authors: Khrustalyov, AP
Kozulin, AA
Zhukov, IA
Khmeleva, MG
Vorozhtsov, AB
Eskin, D
Chankitmunkong, S
Platov, VV
Vasilyev, SV
Keywords: Aluminum alloy;Titanium diboride;Master alloy;Structure;Mechanical properties
Issue Date: 23-Sep-2019
Publisher: MDPI
Citation: Metals, 9 (10), pp. 1030 - 1030
Abstract: In the present study, aluminum alloys of the Al-Mg system with titanium diboride particles of different size distribution were obtained. The introduction of particles in the alloy was carried out using master alloys obtained through self-propagating high-temperature synthesis (SHS) process. The master alloys consisted of the intermetallic matrix Al-Ti with distributed TiB2 particles. The master alloys with TiB2 particles of different size distribution were introduced in the melt with simultaneous ultrasonic treatment, which allowed the grain refining of the aluminum alloy during subsequent solidification. It was found that the introduction of micro- and nanoparticles TiB2 increased the yield strength, tensile strength, and plasticity of as-cast aluminum alloys. After pass rolling the castings and subsequent annealing, the effect of the presence of particles on the increase of strength properties is much less felt, as compared with the initial alloy. The recrystallization of the structure after pass rolling and annealing was the major contributor to hardening that minimized the effect of dispersion hardening due to the low content of nanosized titanium diboride.
URI: http://bura.brunel.ac.uk/handle/2438/19212
DOI: http://dx.doi.org/10.3390/met9101030
ISSN: 2075-4701
Appears in Collections:Dept of Mechanical Aerospace and Civil Engineering Research Papers

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