Optimization of mechanical properties of a micro alloyed steel

被引:23
作者
Rasouli, D. [1 ]
Asl, Sh. Khameneh [1 ]
Akbarzadeh, A. [1 ]
Daneshi, G. H. [1 ]
机构
[1] Sharif Univ Technol, Dept Mat Sci & Engn, Tehran 14584, Iran
关键词
Forming; Mechanical; Microstructure; MICROALLOYED FORGING STEELS; HOT-WORKING CONDITIONS; SHEAR PUNCH TESTS; FRACTURE-TOUGHNESS; AUSTENITIC ALLOYS; CARBON STEELS; MICROSTRUCTURE; IRRADIATION; TITANIUM; MODEL;
D O I
10.1016/j.matdes.2008.08.024
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
In this work, the effect of hot deformation temperature on microstructure and mechanical properties of micro alloyed steel was studied. The results indicated that by decreasing the deformation temperature final microstructure is refined and the volume fraction of grain boundary ferrite is increased and some pearlite is produced. Therefore both the yield strength and ultimate tensile strength is increased, while the toughness is preserved in comparison to a ferritic-pearlitic microstructure. Also a model was developed to relate the deformation condition to the volume fraction of acicular ferrite at mixed microstructure. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2167 / 2172
页数:6
相关论文
共 24 条
[1]  
*ASM INT, 1999, ASM HDB PROP SEL IR, V1
[2]  
Bhadeshia H., 2001, Bainite in steels: transformation, microstructure and properties, P237
[3]   Effect of the chemical composition on the peak and steady stresses of plain carbon and microalloyed steels deformed under hot working conditions [J].
Cabrera, JM ;
Jonas, JJ ;
Prado, JM .
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON MICROALLOYING IN STEELS, 1998, 284-2 :127-134
[4]   Dynamic recrystallization of austenite in microalloyed high carbon steels [J].
Elwazri, AM ;
Wanjara, P ;
Yue, S .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 339 (1-2) :209-215
[5]   Warm forging of a vanadium microalloyed steel [J].
Garcia, C ;
Romero, JL ;
Rodriguez-Ibabe, JM .
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON MICROALLOYING IN STEELS, 1998, 284-2 :435-442
[6]   Conditioning of austenite by hot working of microalloyed forging steels [J].
GonzalezBaquet, I ;
Kaspar, R ;
Richter, J .
STEEL RESEARCH, 1997, 68 (02) :61-66
[7]   Evaluation of mechanical properties using shear-punch testing [J].
Guduru, RK ;
Darling, KA ;
Kishore, R ;
Scattergood, RO ;
Koch, CC ;
Murty, KL .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2005, 395 (1-2) :307-314
[8]   Effect of low temperature irradiation on the mechanical properties of ternary V-Cr-Ti alloys as determined by tensile tests and shear punch tests [J].
Hamilton, ML ;
Toloczko, MB .
JOURNAL OF NUCLEAR MATERIALS, 2000, 283 (PART I) :488-491
[9]   Shear punch and tensile measurements of mechanical property changes induced in various austenitic alloys by high-energy mixed proton and neutron irradiation at low temperatures [J].
Hamilton, ML ;
Garner, FA ;
Toloczko, MB ;
Maloy, SA ;
Sommer, WF ;
James, MR ;
Ferguson, PD ;
Louthan, MR .
JOURNAL OF NUCLEAR MATERIALS, 2000, 283 (283-287) :418-422
[10]   Shear punch testing of 59Ni isotopically-doped model austenitic alloys after irradiation in FFTF at different He/dpa ratios [J].
Hankin, GL ;
Toloczko, MB ;
Hamilton, ML ;
Garner, FA ;
Faulkner, RG .
JOURNAL OF NUCLEAR MATERIALS, 1998, 258 :1657-1663