Specifications

Engineering
DOI: 10.4028/www.scientific.net/AMM.263-266.1553
Database: Compendex
Compilation and indexing terms, © 2013 Elsevier Inc.
38.
Accession number: 20130415931610
Title: Effects of welding heat input on properties of joints of X100 pipeline steel
Authors: Zhang, Min1 ; Yang, Liang1 ; Li, Jihong1/张敏;杨亮;李继红
Author affiliation:
1 College of Material Science and Engineering, Xi'an University of Technology, Xi'an 710048,
China
Corresponding author: Zhang, M. ([e-mail])
Source title: Cailiao Yanjiu Xuebao/Chinese Journal of Materials Research
Abbreviated source title: Cailiao Yanjiu Xuebao
Volume: 26
Issue: 6
Issue date: December 2012
Publication year: 2012
Pages: 567-571
Language: Chinese
ISSN: 10053093
CODEN: CYXUEV
Document type: Journal article (JA)
Publisher: Chinese Journal of Materials Research, 72 Wenhua Road, Shenyang, 110015,
China
Abstract: The effect of welding heat input on the microstructure and properties of X100
pipeline steel was studied. The results show that with the increase of heat input, the strength
and toughness of X100 pipeline steel decrease due to the decrease of acicular ferrite in the weld
zone and the coarser grains in HAZ. The smaller heat input can reduce the width, and increase
the hardness in HAZ. The impact energy and the shear area of joints decrease with increasing
heat input. The impact fracture is quasi-cleavage fracture. The microstructure of weld zone is
mainly made up of acicular ferrite and granular bainitic which could bring excellent strength and
toughness. The microstructure of HAZ has larger changes because of difference of the cooling
rate under different welding heat input. © Copyright.
Number of references: 9
Main heading: Welding
Controlled terms: Brittle fracture - Ferrite - Heat affected zone - Microstructure
- Steel pipe
Uncontrolled terms: Acicular ferrite - Coarser grains - Cooling rates - Heat
input - Impact energy - Impact fracture - Metallic material - Microstructure and
properties - Properties - Quasi cleavage fracture - Shear area - Strength and
toughness - Weld zone - Welding heat input - X100 pipelines
Classification code: 421 Strength of Building Materials; Mechanical Properties - 538.2
Welding - 545.3 Steel - 933 Solid State Physics - 951 Materials Science