Effect of Quenching Temperature on Structure and Properties of Titanium Alloy: Structure and Phase Composition

被引：17
作者：
Popov, A. A. [1 ]
Illarionov, A. G. [1 ]
Stepanov, S. I. [1 ]
Elkina, O. A. [1 ,2 ]
Ivasishin, O. M. [3 ]
机构：
[1] Yeltsin Ural Fed Univ, Ekaterinburg 620002, Russia
[2] Russian Acad Sci, Ural Branch, Inst Met Phys, Ekaterinburg 620990, Russia
[3] Natl Acad Sci Ukraine, Kurdjumov Inst Met Phys, UA-03680 Kiev, Ukraine
来源：
PHYSICS OF METALS AND METALLOGRAPHY | 2014年 / 115卷 / 05期
关键词：
VT16 titanium alloy; structure; phase composition; quenching; grain size; electron microscopy; X-ray phase analysis; VT16;
D O I：
10.1134/S0031918X14050068
中图分类号：
TF [冶金工业];
学科分类号：
0806 ;
摘要：
X-ray diffraction analysis and transmission and scanning electron microscopy have been used to study regularities of the formation of structure and phase composition of a VT16 alloy during its quenching. The formation of an athermal omega phase in the VT 16 alloy with the initial (alpha + beta) structure during quenching of the alloy from 800 C was found to be possible. Quenching temperatures (T-q) at which various metastable phase compositions, such as the metastable 13 solid solution, beta + alpha" + omega, beta + alpha", and alpha" martensite, are formed have been determined to be 750, 800, 750-850, and <= 850 degrees C, respectively. Dependences of variations in the volume fractions of phases were plotted. It has been shown that, at quenching temperatures close to the beta-transus, the active growth of beta-phase grains takes place at the expense of a decrease in the alpha-phase volume fraction.
引用
收藏
页码：507 / 516
页数：10
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