scholarly journals Microstructure and the Mechanical Properties of Dual-phase Steel Produced by Intercritical Annealing of Lath Martensite

1984 ◽  
Vol 70 (2) ◽  
pp. 246-253 ◽  
Author(s):  
Naomi MATSUMURA ◽  
Masaharu TOKIZANE
Keyword(s):  
Mechanical Properties ◽  
Dual Phase Steel ◽  
Intercritical Annealing ◽  
Lath Martensite ◽  
Dual Phase

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.

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