Effect of Controlled Cooling After Hot Rolling on Mechanical Properties of Hot Rolled TRIP Steel

2008 ◽  
Vol 15 (2) ◽  
pp. 65-70 ◽  
Author(s):  
Di Wu ◽  
Zhuang Li ◽  
Hui-sheng Lü
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
Trip Steel ◽  
Controlled Cooling ◽  
Hot Rolled

scholarly journals Mechanism of Microstructural Control and Mechanical Properties in Hot Rolled Plain C–Mn Steel during Controlled Cooling

2015 ◽  
Vol 55 (8) ◽  
pp. 1721-1729 ◽  
Author(s):  
Chengning Li ◽  
Guo Yuan ◽  
Fengqin Ji ◽  
Jian Kang ◽  
Devesh Misra ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Controlled Cooling ◽  
Hot Rolled ◽  
Mn Steel ◽  
Microstructural Control

Effect of Hot-Rolling Parameters on Microstructure and Mechanical Properties of 72LXA Steel Wire Rod

2012 ◽  
Vol 581-582 ◽  
pp. 842-846
Author(s):  
Jian Hua Zeng ◽  
Yi Chang Li ◽  
Zheng Zhou ◽  
Jun Chen
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
Steel Wire ◽  
Rolling Process ◽  
Impact Factors ◽  
Cooling Process ◽  
Controlled Cooling ◽  
Wire Rod ◽  
Microstructure And Mechanical Properties ◽  
Proeutectoid Ferrite

Effect of the laying head temperature and controlled cooling process on microstructure and mechanical properties of 72LXA wire rod were investigated．The results show that under the same cooling process，with the raising laying temperature and increasing sorbitizing rate and decreasing proeutectoid ferrite，the steel rod strength is improving，proeutectoid ferrite and sorbitizing rate are the critical impact factors on steel rod properties；indentifying cooling after perlite forming can restrain the dissolve of lamellar cementite；the mechanical properties of whole rod coil are improved by the proper rolling rate and air cooling．The high strength of 1050 MPa of steel rod was obtained，that shows the defined hot rolling process can conform to the steel rod properties requirement．

Effect of Different Cooling Paths on the Microstructure and Properties of a Plain Carbon Steel

2013 ◽  
Vol 762 ◽  
pp. 171-175
Author(s):  
Jin Guo ◽  
Shui Ping Hu ◽  
Zhen Li Mi ◽  
Dong Bin Zhang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Carbon Steel ◽  
Hot Rolling ◽  
Plain Carbon Steel ◽  
Controlled Cooling ◽  
Microstructure And Properties ◽  
Ultra Fast Cooling ◽  
Cooling Method ◽  
Fast Cooling

The effect of different cooling paths on the microstructure and properties of a plain carbon steel was carefully investigated by thermal simulation, hot rolling, tensile tests and quantitative metallography. Experimental results indicate that the more rapid the cooling rate is, the smaller the average ferritic grain size is and the higher the mechanical properties are. Both ultra fast cooling method and ultra fast cooling+accelerated controlled cooling method could refine grain size and improve mechanical properties. Without any alloy addition, using the ultra fast cooling immediately after hot rolling process, the yield strength of the plain carbon steel could reach 360 MPa and the elongation is 32%.

Influence of Initial Microstructure on Mechanical Properties of Cu Bearing Extra Low Carbon Steel Sheets

2010 ◽  
Vol 654-656 ◽  
pp. 306-309
Author(s):  
Sim Kun Min ◽  
Sung Il Kim ◽  
Jong Sang Kim ◽  
Moon Hi Hong
Keyword(s):  
Mechanical Properties ◽  
Hot Rolling ◽  
Low Carbon Steel ◽  
Onset Time ◽  
Continuous Annealing ◽  
Low Carbon ◽  
Initial Microstructure ◽  
Steel Sheets ◽  
Axial Tensile ◽  
Hot Rolled

This paper examines the effect of initial microstructure after hot rolling on the final microstructure and mechanical properties for Cu bearing Extra Low Carbon(ELC) Steel Sheets. For this purpose, two ELC steels having different initial microstructures due to different onset time of cooling after pilot hot rolling (0.4 and 1.2 second) were selected. Mechanical properties and microstructures were analyzed as well using uni-axial tensile test, electron back-scattered diffraction (EBSD) technique following pilot rolling and continuous annealing. It has been found that the reduction of onset time of cooling gives rise to the grain refinement in hot rolled sheets. The average grain sizes of hot rolled sheetss at the onset time of 0.4 and 1.2 second are 16.7μm and 20.8 μm, respectively. In addition, the planar anisotropy of the Cu bearing ELC steel sheets has improved with reducing onset time of cooling after hot rolling. However, other mechanical properties such as strength and elongation of annealed steel are similar to both cooling condition.

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