Deformation localization and recrystallization in TC4 alloy under impact condition

被引：65

作者：

Li, GA ^{[1
]}

Zhen, L ^{[1
]}

Lin, C ^{[1
]}

Gao, RS ^{[1
]}

Tan, X ^{[1
]}

Xu, CY ^{[1
]}

机构：

[1] Harbin Inst Technol, Dept Mat Sci, Harbin 150001, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2005年 / 395卷 / 1-2期

关键词：

high velocity impact; deform localization; recrystallization; micro-voids;

D O I：

10.1016/j.msea.2004.12.020

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

GCr15 steel balls 4 mm in diameter were used as projectiles to impact different thickness Ti-6Al-4V targets at a speed of 1.5 km/s. Two types of adiabatic shear bands (ASBs) near the craters were distinguished by optical microscopy deformed shear bands; white-etching shear bands. The white-etching bands and deformed bands coexist in thin targets. In two other types of targets, only the white-etching bands were observed. The boundary between the white-etching bands and matrix is very clear. Micro-voids and cracks are observed in white-etching bands. Observation by transmission electron microscope (TEM) reveals that the white-etching bands contain nano-size equiaxed grains, which confirm that recrystallization occurs during white-etching bands formation. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：98 / 101

页数：4

共 20 条

[1] A study of high-rate shearing of commercially pure aluminum sheet [J].

Gotoh, M ;

Yamashita, M .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2001, 110 (03) :253-264

[2] Recrystallization kinetics within adiabatic shear bands [J].

Hines, JA ;

Vecchio, KS .

ACTA MATERIALIA, 1997, 45 (02) :635-649

[3] OBSERVATION OF ADIABATIC SHEAR BANDS FORMED BY BALLISTIC IMPACT IN ALUMINUM-LITHIUM ALLOYS [J].

LEE, CG ;

LEE, YJ ;

LEE, SH .

SCRIPTA METALLURGICA ET MATERIALIA, 1995, 32 (06) :821-826

[4] The morphologies and characteristics of impact-induced martensite in 304L stainless steel [J].

Lee, WS ;

Lin, CF .

SCRIPTA MATERIALIA, 2000, 43 (08) :777-782

[5] Plastic deformation and fracture behaviour of Ti-6Al-4V alloy loaded with high strain rate under various temperatures [J].

Lee, WS ;

Lin, CF .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1998, 241 (1-2) :48-59

[6] Impact properties and microstructure evolution of 304L stainless steel [J].

Lee, WS ;

Lin, CF .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2001, 308 (1-2) :124-135

[7] Dynamic recrystallization induced by plastic deformation at high strain rate in a Monel alloy [J].

Li, Q ;

Xu, YB ;

Lai, ZH ;

Shen, LT ;

Bai, YL .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2000, 276 (1-2) :250-256

[8] ON THE ADIABATIC SHEAR OF TI-6AL-4V BALLISTIC TARGETS [J].

MEBAR, Y ;

SHECHTMAN, D .

MATERIALS SCIENCE AND ENGINEERING, 1983, 58 (02) :181-188

[9] ADIABATIC SHEAR FAILURE UNDER BIAXIAL DYNAMIC COMPRESSION SHEAR LOADING [J].

MEYER, LW ;

STASKEWITSCH, E ;

BURBLIES, A .

MECHANICS OF MATERIALS, 1994, 17 (2-3) :203-214

[10] OBSERVATION OF AN ADIABATIC SHEAR BAND IN TITANIUM BY HIGH-VOLTAGE TRANSMISSION ELECTRON-MICROSCOPY [J].

MEYERS, MA ;

PAK, HR .

ACTA METALLURGICA, 1986, 34 (12) :2493-2499

← 1 2 →