In-situ strain localization analysis in low density transformation-twinning induced plasticity steel using digital image correlation

被引:34
作者
Eskandari, M. [1 ,2 ]
Yadegari-Dehnavi, M. R. [3 ]
Zarei-Hanzaki, A. [2 ]
Mohtadi-Bonab, M. A. [1 ]
Basu, R. [1 ]
Szpunar, J. A. [1 ]
机构
[1] Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7N 0W0, Canada
[2] Univ Tehran, Sch Met & Mat Engn, Coll Engn, Hot Deformat & Thermomech Proc High Performance E, Tehran, Iran
[3] Univ Tehran, Dept Mech Engn, Intelligence Based Expt Mech Lab, Tehran, Iran
关键词
In situ; Phase transformation; Deformation twinning; Austenitic steel; MECHANICAL-BEHAVIOR; IDENTIFICATION;
D O I
10.1016/j.optlaseng.2014.10.005
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
The effect of deformation temperature on the strain localization has been evaluated by an adapted digital image correlation (DIC) technique during tensile deformation. The progress of strain localization was traced by the corresponding strain maps. The electron backscatter diffraction analysis and tint etching technique were utilized to determine the impact of martensitic transformation and deformation twinning on the strain localization in both elastic and plastic regimes. In elastic regime the narrow strain bands which are aligned perpendicular to the tension direction were observed in temperature range of 25 to 180 degrees C due to the stress-assisted epsilon martensite. The strain bands were disappeared by increasing the temperature to 300 degrees C and reappeared at 400 degrees C due to the stress-assisted deformation twinning. In plastic regime strain localization continued at 25 degrees C and 180 degrees C due to the strain-induced alfa-martensite and deformation twinning, respectively. The intensity of plastic strain localization was increased by increasing the strain due to the enhancement of martensite and twin volume fraction. The plastic strain showed more homogeneity at 300 degrees C due to the lack of both strain-induced martensite and deformation twinning. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:1 / 16
页数:16
相关论文
共 32 条
[1]   The fracture and plastic deformation of aluminum alloyed Hadfield steels [J].
Abbasi, Majid ;
Kheirandish, Shahram ;
Kharrazi, Yosef ;
Hejazi, Jalal .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2009, 513-14 :72-76
[2]  
[Anonymous], E8 ASTM, V3
[3]   Temperature dependence of plastic deformation mechanisms in a modified transformation-twinning induced plasticity steel [J].
Asghari, A. ;
Zarei-Hanzaki, A. ;
Eskandari, M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 579 :150-156
[4]   Twinning-Induced Plasticity Steels Preface [J].
Bhadeshia, H. K. D. H. .
SCRIPTA MATERIALIA, 2012, 66 (12) :955-955
[5]   On the negative strain rate sensitivity of Hadfield steel [J].
Canadinc, D. ;
Efstathiou, C. ;
Sehitoglu, H. .
SCRIPTA MATERIALIA, 2008, 59 (10) :1103-1106
[6]   APPLICATIONS OF DIGITAL-IMAGE-CORRELATION TECHNIQUES TO EXPERIMENTAL MECHANICS [J].
CHU, TC ;
RANSON, WF ;
SUTTON, MA ;
PETERS, WH .
EXPERIMENTAL MECHANICS, 1985, 25 (03) :232-244
[7]   Strain hardening and heterogeneous deformation during twinning in Hadfield steel [J].
Efstathiou, C. ;
Sehitoglu, H. .
ACTA MATERIALIA, 2010, 58 (05) :1479-1488
[8]   Microstructure evolution and mechanical behavior of a new microalloyed high Mn austenitic steel during compressive deformation [J].
Eskandari, M. ;
Zarei-Hanzaki, A. ;
Szpunar, J. A. ;
Mohtadi-Bonab, M. A. ;
Karnali, A. R. ;
Nazarian-Samani, M. .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 615 :424-435
[9]   In situ identification of elastic-plastic strain distribution in a microalloyed transformation induced plasticity steel using digital image correlation [J].
Eskandari, M. ;
Zarei-Hanzaki, A. ;
Yadegari, M. ;
Soltani, N. ;
Asghari, A. .
OPTICS AND LASERS IN ENGINEERING, 2014, 54 :79-87
[10]   Formation of Nanocrystalline Structure in 301 Stainless Steel Produced by Martensite Treatment [J].
Eskandari, M. ;
Kermanpur, A. ;
Najafizadeh, A. .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2009, 40A (09) :2241-2249