scholarly journals Snoek and Snoek-Köster-like Relaxations in Low Carbon Steel with Ferrite-Martensite Dual Phase Structure

1982 ◽  
Vol 23 (5) ◽  
pp. 243-249 ◽  
Author(s):  
Yoshimitsu Iwasaki ◽  
Koichi Hashiguchi
Keyword(s):  
Carbon Steel ◽  
Phase Structure ◽  
Low Carbon Steel ◽  
Dual Phase ◽  
Low Carbon

An evaluation of the wear behaviour of a dual-phase low-carbon steel

Wear ◽  
1996 ◽  
Vol 193 (2) ◽  
pp. 248-252 ◽  
Author(s):  
M. Aksoy ◽  
M.B. Karamiş ◽  
E. Evin
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Wear Behaviour ◽  
Dual Phase ◽  
Low Carbon

scholarly journals Impact of Cold-Rolling and Heat Treatment on Mechanical Properties of Dual-Phase Treated Low Carbon Steel

2020 ◽  
Vol 2020 ◽  
pp. 1-9
Author(s):  
Le Van Long ◽  
Dinh Van Hien ◽  
Nguyen Truong Thanh ◽  
Nguyen Chi Tho ◽  
Van Thom Do
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Low Carbon Steel ◽  
High Strength ◽  
Processing Parameters ◽  
Dual Phase ◽  
Low Carbon ◽  
Forming Process ◽  
Good Ductility ◽  
Rolling Deformation

The low carbon steel has good ductility that is favorable for forming process, but its low strength leads to limiting their application for forced structures. This paper studied improving strength of low-carbon steel via rolling deformation and dual-phase treatment. The results showed that the dual-phase treated steel had a combination of high strength and good ductility; its tensile ultimate strength reached 740 MPa with elongation at fracture of over 15%, while that of the cold-rolled steel only reached 700 MPa with elongation at fracture of under 3%. Based on the obtained results, relationships between mechanical properties and dual-phase processing parameters were established to help users choose suitable-processing parameters according to requirements of products.

Effect of Intercritical Annealing Temperature and Holding Time on Microstructure and Mechanical Properties of Dual Phase Low Carbon Steel

2014 ◽  
Vol 493 ◽  
pp. 721-726 ◽  
Author(s):  
Alfirano ◽  
Wibawa Samdan ◽  
Hidayat Maulud
Keyword(s):  
Carbon Steel ◽  
Annealing Temperature ◽  
Volume Fraction ◽  
Intercritical Annealing ◽  
Low Carbon Steel ◽  
Growth Rate Constant ◽  
Dual Phase ◽  
Initial Condition ◽  
Low Carbon ◽  
Intercritical Annealing Temperature

Dual phase steels are an important advanced high strength steel, which have been widely used in the automotive industry for vehicle components requiring light weight and safety. In this study, the formation of dual phase structure with various volume fraction of martensite in a low carbon steel SS400 during intercritical annealing were investigated. It was found that intercritical annealing temperature and holding time affected the microstructure and mechanical properties of dual phase low carbon steel. The specimens were heated at intercritical annealing temperature of 750°C, 775°C, 800°C and 825°C, for holding periods of 6-18 minutes, followed by water quenching in order to get a dual phase ferrite and martensite. After quenching, it was obtained the optimal annealing conditions at 800°C with a holding periods of 10 minutes. In this condition, the tensile strength was increased up to 621 N/mm2or 39.24% higher than the initial condition, while the elongation decreased up to 13.8%. The hardness of specimens increased from 127.7 to 235.83 HVN or up to 84.67% higher than the initial condition. Meanwhile the volume fraction of martensite was 24.08%. The higher the temperature of the heating value of grain growth rate constant (K) increases. In addition, at the optimal poin, the value ofK(grain growth rate constant) andn(Avramis exponent) were 0.263 and 0.318, respectively, with activation energy (Q) of 3.98 J/mol.

Fatigue properties of ultra-fine grained dual phase ferrite/martensite low carbon steel

2008 ◽  
Vol 30 (8) ◽  
pp. 1358-1365 ◽  
Author(s):  
M OKAYASU ◽  
K SATO ◽  
M MIZUNO ◽  
D HWANG ◽  
D SHIN
Keyword(s):  
Carbon Steel ◽  
Low Carbon Steel ◽  
Fatigue Properties ◽  
Dual Phase ◽  
Low Carbon ◽  
Fine Grained

scholarly journals Spheroidization heat treatment and intercritical annealing of low carbon steel

2019 ◽  
Vol 55 (3) ◽  
pp. 405-411 ◽  
Author(s):  
Z. Nasiri ◽  
H. Mirzadeh
Keyword(s):  
Carbon Steel ◽  
Intercritical Annealing ◽  
Low Carbon Steel ◽  
Dual Phase ◽  
Low Carbon ◽  
Dp Steel ◽  
Martensitic Microstructure ◽  
Uniform Dispersion ◽  
Dp Steels ◽  
Carbide Particles

Spheroidization annealing of low carbon steel and its effects on the microstructure and mechanical properties of dual phase (DP) steel were studied. It was revealed that the reduction in strength and hardness of the quenched martensitic microstructure was much more pronounced compared to the fully annealed ferritic-pearlitic banded microstructure with spheroidizing time. This was related to the confinement of spheroidized carbide particles to distinct bands in the latter, and the uniform dispersion of carbides and high-temperature tempering of martensite in the former. During intercritical annealing of the spheroidized microstructures, the tendency to obtain martensite particles as discrete islands was observed. This, in turn, resulted in an inferior strength-ductility balance compared to the DP steel obtained from the intercritical annealing of martensite, which negated the usefulness of the spheroidized microstructures as the initial microstructures for the processing of DP steels.

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