Effect of retained beta layer on slip transmission in Ti-6Al-2Zr-1Mo-1V near alpha titanium alloy during tensile deformation at room temperature

被引：106

作者：

He, Dong ^{[1
]}

Zhu, Jingchuan ^{[2
]}

Zaefferer, S. ^{[3
]}

Raabe, D. ^{[3
]}

机构：

[1] Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, Beijing 100190, Peoples R China

[2] Harbin Inst Technol, Natl Key Lab Precis Hot Proc Met, Harbin 150001, Peoples R China

[3] Max Planck Inst Eisenforsch GmbH, Abt Mikrostrukt Phys & Umformtech, D-40237 Dusseldorf, Germany

来源：

MATERIALS & DESIGN | 2014年 / 56卷

关键词：

Retained beta; Slip transmission; Burgers orientation relationship; Tensile deformation; Titanium alloys; MICROSTRUCTURE EVOLUTION; HOT DEFORMATION; MECHANICAL-PROPERTIES; FLOW-STRESS; BEHAVIOR; RECRYSTALLIZATION; PREDICTION;

D O I：

10.1016/j.matdes.2013.12.018

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Slip is the main plastic deformation mechanism in titanium alloys at room temperature. This is especially so for near alpha titanium alloy like Ti-6Al-2Zr-1Mo-1V, which contains low beta stabilizing and high aluminum (alpha stabilizing) element additions. The effects of retained beta layers on slip transmission across alpha/beta interfaces in Ti-6Al-2Zr-1Mo-1V during tensile deformation have been studied in the current work. High resolution scanning electron microscopy (HR-SEM) and electron backscatter diffraction (EBSD) techniques were used to study the deformation microstructure. The results indicate that the full Burgers crystal orientation relationship (OR) between the alpha and the thin retained beta phase layers facilitates slip transition but is not the necessary requirement/restriction. Some novel slip trace morphologies that are characterized by deflection and bifurcation (fork-like morphology) are revealed in the retained beta layers between two abutting alpha grains. The possible reasons for these different slip transmission patterns are analyzed by EBSD results and alpha schematic model is proposed. (C) 2013 Elsevier Ltd. All rights reserved.

引用

页码：937 / 942

页数：6

共 28 条

[1] ALPHA-BETA INTERFACE SLIDING IN TI-MN ALLOYS [J].

ANKEM, S ;

MARGOLIN, H .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (03) :500-503

[2] THE ROLE OF ELASTIC INTERACTION STRESSES ON THE ONSET OF PLASTIC-FLOW FOR ORIENTED 2 DUCTILE PHASE STRUCTURES [J].

ANKEM, S ;

MARGOLIN, H .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1980, 11 (06) :963-972

[3]

[Anonymous], 2009, ISO 6892-1: 2009

[4]

Banerjee D., 1986, Defence Science Journal, V36, P191

[5] Slip and fatigue crack formation processes in an α/β titanium alloy in relation to crystallographic texture on different scales [J].

Bridier, F. ;

Villechaise, P. ;

Mendez, J. .

ACTA MATERIALIA, 2008, 56 (15) :3951-3962

[6] Analysis of the different slip systems activated by tension in a α/β titanium alloy in relation with local crystallographic orientation [J].

Bridier, F ;

Villechaise, P ;

Mendez, J .

ACTA MATERIALIA, 2005, 53 (03) :555-567

[7] On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium [J].

Burgers, WG .

PHYSICA, 1934, 1 :561-586

[8] Experimental study of dislocation mobility in a Ti-6Al-4V alloy [J].

Castany, P. ;

Pettinari-Sturmel, F. ;

Crestou, J. ;

Douin, J. ;

Coujou, A. .

ACTA MATERIALIA, 2007, 55 (18) :6284-6291

[9]

Donachie M.J., 1988, Titanium : a technical guide

[10] Prediction of constitutive behavior and microstructure evolution in hot deformation of TA15 titanium alloy [J].

Fan, X. G. ;

Yang, H. ;

Gao, P. F. .

MATERIALS & DESIGN, 2013, 51 :34-42

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