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Predicting Fracture Toughness of TRIP 800 Using Phase Properties Characterized by In-Situ High-Energy X-Ray Diffraction
被引:7
|作者:
Soulami, A.
[1
]
Choi, K. S.
[1
]
Liu, W. N.
[1
]
Sun, X.
[1
]
Khaleel, M. A.
[1
]
Ren, Y.
[2
]
Wang, Y. D.
[3
]
机构:
[1] Pacific NW Natl Lab, Computat Sci & Math Div, Richland, WA 99352 USA
[2] Argonne Natl Lab, Xray Sci Div, Argonne, IL 60439 USA
[3] Northeastern Univ, Dept Mat Sci, Shenyang 110004, Peoples R China
来源:
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
|
2010年
/
41A卷
/
05期
基金:
美国能源部;
关键词:
INDUCED PLASTICITY TRIP;
MARTENSITIC-TRANSFORMATION;
DEFORMATION-BEHAVIOR;
STEELS;
MODEL;
RESISTANCE;
DUCTILITY;
MICRO;
D O I:
10.1007/s11661-010-0208-4
中图分类号:
T [工业技术];
学科分类号:
08 ;
摘要:
Transformation-induced plasticity (TRIP) steel is a typical representative of first generation advanced high-strength steel, which exhibits a combination of high strength and excellent ductility due to its multiphase microstructure. In this article, we study the crack propagation behavior and fracture resistance of a TRIP 800 steel using a microstructure-based finite element method with the various phase properties characterized by in-situ high-energy X-ray diffraction (HEXRD) technique. Uniaxial tensile tests on the notched TRIP 800 sheet specimens were also conducted, and the experimentally measured tensile properties and R curves (resistance curves) were used to calibrate the modeling parameters and to validate the overall modeling results. The comparison between the simulated and experimentally measured results suggests that the micromechanics based modeling procedure can well capture the overall complex crack propagation behaviors and the fracture resistance of TRIP steels. The methodology adopted here may be used to estimate the fracture resistance of various multiphase materials.
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页码:1261 / 1268
页数:8
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