The Research of Controlled Rolling and Cooling Process in X70 Grade Pipeline Steel with Vanadium Microalloying

Xiao Yu Ye; Kai Hua Zhang; Jun Zuo

doi:10.4028/www.scientific.net/AMR.393-395.1033

Paper Titles

The Influence of Amount of Wood Fiber on New Flame-Retardant Melamine-Urea-Formaldehyde (MUF) Composite Foam
p.1012

The Leakage Detection Method of Water Supply System by Regional Model
p.1018

The Optimization of Extraction of Cordycepin from Fruiting Body of Cordyceps militaris (L.) Link
p.1024

The Photophysical Properties of Pyropheophorbide-a in Different Laser Light and PDT Efficiency for Eca-109 Cell In Vitro
p.1029

The Research of Controlled Rolling and Cooling Process in X70 Grade Pipeline Steel with Vanadium Microalloying
p.1033

The Research of Petroleum Contaminated Site Media for Adsorption of Petroleum Pollutant
p.1038

The Research on Ragweed Extracting Solution to Rats Acute Toxicity and Protective Enzymatic Activity of Rats’ Liver
p.1042

Three-Dimensional Damage Analysis of Concrete Surrounding the Spiral Case in the Nuozhadu Hydropower Station
p.1048

To Enhance the Production of Human-Like Collagen II by Amino Acid Addition Using Response Surface Methodology
p.1054

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 393-395The Research of Controlled Rolling and Cooling...

The Research of Controlled Rolling and Cooling Process in X70 Grade Pipeline Steel with Vanadium Microalloying

Abstract:

In Formastor-Ⅱ thermal expansion phase transition instrument, determine test steel's thermal expansion curves with different cooling rates during continuous cooling. Using thermal expansion combined with metallographic-hardness method to draw the continuous cooling transformation curve (CCT).According to the test results draft thermal simulation program, in Gleele-3500 thermal simulation test machine, conduct thermal simulation experiment for vanadium microalloying X70 grade pipeline steel at different deformation temperature, deformation extent and coiling temperature. Analysis that the microstructure was influenced by different rolling process.The results showed that: in industrial production, the experiment steel's rough rolling temperature should be controlled more than 1020°C, finishing temperature controlled in 820±20°C and coiling temperature controlled in 500～530°C to obtain acicular ferrite.

You might also be interested in these eBooks

Biotechnology, Chemical and Materials Engineering

View Preview

Info:

Periodical:

Advanced Materials Research (Volumes 393-395)

Pages:

1033-1037

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.393-395.1033

Citation:

Cite this paper

Online since:

November 2011

Authors:

Xiao Yu Ye, Kai Hua Zhang, Jun Zuo

Keywords:

Acicular Ferrite, CCT Curve, Microstructure, X70 Grade Pipeline Steel

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

Citation:

References

[1] Hiroyuki M, Naoto H, Tomoki M．Tensile properties and microstructure of weld metal of X80 steel [J]. MaterialsScience Forum, 2003, 426-432：4013-4018.

DOI: 10.4028/www.scientific.net/msf.426-432.4013

Google Scholar

[2] (America) Brooks,C. R, Heat treatment of nonferrous alloy, Microstructure and Properties[M], BeiJing. Metallurgical Industry Press, (1988).

Google Scholar

[3] A.M. Sage, Metals Technology, Vol. 10, No. 6, 1983, pp.224-233.

Google Scholar