Effect of hydrogen on phase and structural transformations in titanium alloys of different classes

被引：9
作者：
Il'in, A. A. [1 ]
Skvortsova, S. V. [1 ]
Mamonov, A. M. [1 ]
Kollerov, M. Yu. [1 ]
机构：
[1] Tsiolkovskii Russian State Univ Technol MATI, Moscow, Russia
来源：
MATERIALS SCIENCE | 2006年 / 42卷 / 03期
关键词：
Titanium Alloy; Intermetallic Compound; Isothermal Holding; Vacuum Annealing; High Aluminum Content;
D O I：
10.1007/s11003-006-0085-6
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
We study the laws of phase and structural transformations in titanium alloys under the action of dissolved hydrogen and in the course of subsequent degassing. We show the possibility to control structure formation in them with the help of alloying with hydrogen and to obtain structures that cannot be obtained by conventional technological methods. It has been established that the alloying system determines the character of interaction of these alloys with hydrogen in the course of hydrogenation. After additional alloying with hydrogen, intermediate hydrides are formed in titanium alloys with beta-isomorphic stabilizers (V, Nb), Ti Cr-2 intermetallic compound appears in alloys with beta-eutectoid stabilizer (Cr), and Ti3Al compound is formed in alloys with high aluminum content. After vacuum annealing of hydrogen-containing specimens at 600 degrees C, a composite heterophase (alpha + beta + alpha(2)) or (alpha + beta + TiCr2) structure is formed, and intermetallic particles in it have an incoherent boundary.
引用
收藏
页码：316 / 322
页数：7
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