TITLE

Effect of ferrite-bainite structure on the properties of high-strength pipe steel

AUTHOR(S)
Smirnov, M.; Pyshmintsev, I.; Maltseva, A.; Mushina, O.
PUB. DATE
January 2012
SOURCE
Metallurgist;Jan2012, Vol. 56 Issue 1/2, p43
SOURCE TYPE
Academic Journal
DOC. TYPE
Article
ABSTRACT
Mechanical properties of pipe steel 07G2MFB are studied after cooling from the austenitic region at rates of 0.9-32�C/sec making it possible to obtain a ferrite-bainite structure with different ratios of structural components. It is shown that formation of a predominantly bainitic structure formed with high cooling rates provides less crack resistance with static loading than a structure in which polygonal ferrite predominates. A bainitic structure is preferable with dynamic loading. Treatment leading to formation of coarse islands of martensite-austenite (MA) component within a ferrite-bainite structure has an unfavorable effect on crack tip opening displacement CTOD, ductile-brittle transition temperature T, and resistance to hydrogen embrittlement ??/?.
ACCESSION #
76172296

Tags: FERRITES (Magnetic materials);  BAINITE;  STEEL, High strength;  PIPE, Steel;  METALS -- Mechanical properties;  MILD steel;  MICROSTRUCTURE

 

Related Articles

Share

Read the Article

Courtesy of VIRGINIA BEACH PUBLIC LIBRARY AND SYSTEM

Sorry, but this item is not currently available from your library.

Try another library?
Sign out of this library

Other Topics