Texture formation in low carbon Ti bearing steel sheets by high speed hot rolling in ferrite region.

The role of aluminum nitride (AlN) as a buffer layer on the nucleation and growth of diamond on silicon and steel substrates during hot filament chemical vapor deposition (HF-CVD) has been investigated systematically. The scanning Auger electron microscopy (AES) is employed to study chemistry and content of carbon on the surface and in subsurface regions of AlN as a function of HF-CVD parameters. It is found that AlN offers an excellent diffusion barrier for carbon over a wide range of temperature and hydrocarbon content of CVD gas environment, with simultaneous inhibition of graphitization. It also facilitates nucleation of diamond phase. The surface reactions between AlN and carbon are discussed in terms of hydrogen-assisted phase transformations. We have developed a two-step procedure to obtain a continuous diamond film on steel substrates. The characteristic features of AlN have been exploited to obtain adherent and graphite-free diamond deposits on various types of steels, including low carbon steel, tool steel, high speed steel, and bearing steel.

Download Full-text

Influence of α Region Hot Rolling on the Rolling and Recrystallization Texture of Cold Rolled Ti-Bearing Extra Low Carbon Steel Sheets

Materials Science Forum ◽

10.4028/www.scientific.net/msf.157-162.1051 ◽

1994 ◽

Vol 157-162 ◽

pp. 1051-1056 ◽

Cited By ~ 1

Author(s):

Takehide Senuma

Keyword(s):

Carbon Steel ◽

Hot Rolling ◽

Recrystallization Texture ◽

Low Carbon Steel ◽

Low Carbon ◽

Steel Sheets ◽

Cold Rolled

Download Full-text

Texture Formation in Ti-bearing IF Steel Sheets throughout the Rolling and Annealing Processes in Terms of the Influence of Hot Rolling Conditions on Deep Drawability.

ISIJ International ◽

10.2355/isijinternational.34.51 ◽

1994 ◽

Vol 34 (1) ◽

pp. 51-60 ◽

Cited By ~ 33

Author(s):

Takehide Senuma ◽

Kaoru Kawasaki

Keyword(s):

Hot Rolling ◽

If Steel ◽

Texture Formation ◽

Deep Drawability ◽

Steel Sheets ◽

Hot Rolling Conditions

Download Full-text

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

Materials Science Forum ◽

10.4028/www.scientific.net/msf.654-656.306 ◽

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.

Download Full-text