Fatigue characteristics of fine grain dual-phase steel.

1988 ◽  
Vol 37 (417) ◽  
pp. 637-642
Author(s):  
Shigeru YAMAMOTO ◽  
Hideaki NAKAYAMA ◽  
Tsuneshichi TANAKA
Keyword(s):  
Dual Phase Steel ◽  
Dual Phase ◽  
Fine Grain ◽  
Fatigue Characteristics

Void coalescence and fracture behavior of notched and un-notched tensile tested specimens in fine grain dual phase steel

2015 ◽  
Vol 644 ◽  
pp. 210-217 ◽  
Author(s):  
N. Saeidi ◽  
F. Ashrafizadeh ◽  
B. Niroumand ◽  
M.R. Forouzan ◽  
S. Mohseni mofidi ◽  
...  
Keyword(s):  
Fracture Behavior ◽  
Dual Phase Steel ◽  
Void Coalescence ◽  
Dual Phase ◽  
Fine Grain

Effects of Finish-Rolling Reduction on Microstructure and Mechanical Properties for C-Si-Mn Hot Rolled Dual-Phase Steel

2011 ◽  
Vol 339 ◽  
pp. 215-218
Author(s):  
Bin Bin Sun ◽  
Zhi Wei Jia ◽  
Hong Mei Zhang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Dual Phase Steel ◽  
Lath Martensite ◽  
Rolling Reduction ◽  
Dual Phase ◽  
Fine Grain ◽  
Microstructure And Mechanical Properties ◽  
Finish Rolling ◽  
Hot Rolled

The experiments were carried out on the φ450 hot rolling mill at the State Key laboratory of Rolling and Automatic of Northeastern University. The effect of different finish-rolling reduction on the microstructure and mechanical properties of C-Si-Mn hot rolled dual-phase steel were studied. It is found that the grain size of the ferrite would be finer with the increasing of finish-rolling reduction. Through the controlling of the finish-rolling reduction, grain size of the ferrite can be finer, so the better properties can be obtained by fine grain and sub-grain strengthened. With the low volume of lath martensite, the elongation of sample is high, the yield-strength ratio is low, and complex properties are better.

Microstructure and Property Control of Hot Rolled DP600 Steel

2011 ◽  
Vol 415-417 ◽  
pp. 938-942
Author(s):  
Le Yu Zhou ◽  
Ya Zheng Liu ◽  
Lian Hong Yang ◽  
Dan Zhang
Keyword(s):  
Dual Phase Steel ◽  
Volume Fraction ◽  
Ferrite Matrix ◽  
Accelerated Cooling ◽  
Dual Phase ◽  
Dp Steel ◽  
Fine Grain ◽  
Mechanical Experiment ◽  
Property Control ◽  
Hot Rolled

Thermal mechanical experiment of step-cooling of 600MPa hot-rolled DP steel after compressed was carried out on Gleeble-1500 thermal mechanical simulator, using design of butterfly-shaped sample. Microstructure evolution during step-cooling and its effect on mechanical property of tested steel were analyzed. It is shown that, dual phase microstructure which martensite islands disperses in fine grain ferrite matrix is obtained by holding for 8~10s at 670°C followed accelerated cooling to 200°C. With increasing of holding time, grain size of ferrite coarsens, and volume fraction of ferrite has few changes. Meanwhile, tensile strengths of tested steel are all near 600MPa. That is to say, ferrite transformation is adequate during holding for 8~10s at 670°C and tensile strength of dual phase steel is stable accordingly.

Fatigue characteristics of dual-phase steel sheets

2015 ◽  
Vol 29 (1) ◽  
pp. 51-57 ◽  
Author(s):  
Irwan Herman Onn ◽  
Norhayati Ahmad ◽  
Mohd Nasir Tamin
Keyword(s):  
Dual Phase Steel ◽  
Dual Phase ◽  
Steel Sheets ◽  
Fatigue Characteristics

Modeling of bake-hardening effect for fine grain bainite-aided dual phase steel

2017 ◽  
Vol 118 ◽  
pp. 314-329 ◽  
Author(s):  
N. Ormsuptave ◽  
V. Uthaisangsuk
Keyword(s):  
Dual Phase Steel ◽  
Dual Phase ◽  
Bake Hardening ◽  
Fine Grain ◽  
Hardening Effect

Effect of gas nitriding in flowing ammonia on the hot-dip galvanising of the Dual-Phase steel DP500

2005 ◽  
Vol 96 (3) ◽  
pp. 233-241 ◽  
Author(s):  
A. Dimyati ◽  
D. Beste ◽  
T. E. Weirich ◽  
S. Richter ◽  
M. Bückins ◽  
...  
Keyword(s):  
Dual Phase Steel ◽  
Dual Phase ◽  
Gas Nitriding

Amplitude-Dependent Internal Friction of Dislocation Interactions in Dual-Phase Steel

2003 ◽  
Vol 94 (4) ◽  
pp. 436-441 ◽  
Author(s):  
A. K. De ◽  
T. Waterschoot ◽  
B. C. De Cooman
Keyword(s):  
Internal Friction ◽  
Dual Phase Steel ◽  
Dual Phase ◽  
Dislocation Interactions
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