ISSN:
1662-9752
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
The X70 grade and X80 grade pipeline steel strip with acicular ferrite microstructurehave been researched and developed. The properties of the steel with acicular ferrite were studiedby using tensile test, Charpy impact test, CTOD test and DWTT test, and compared to that of thesteel with ferrite and pearlite. The microstructure of acicular ferrite was analyzed by using opticalmetallographic microscopy, scanning electron microscopy and transmission electron microscopy. Itshows that the acicular ferrite pipeline steel has high strength, high toughness, low ductile-brittletransition temperature and high fracture-arrest toughness, the excellent properties are benefit from theuniform microstructure, clean steel, and the low carbon acicular ferrite in which consist of interactionof very fine precipitated particles and high-density dislocation
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/15/transtech_doi~10.4028%252Fwww.scientific.net%252FMSF.539-543.4750.pdf
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