Experimental Research on Fracture Toughness of High Grade Line Pipe-Reference-Cited by-同舟云学术

Experimental Research on Fracture Toughness of High Grade Line Pipe

Published:2012-11 Issue: Volume:525-526 Page:425-428
ISSN:1662-9795
Container-title:Key Engineering Materials
language:
Short-container-title:KEM

Author:

Xiong Qing Ren¹,Zhang Jian Xun¹,Feng Yao Rong²,Wang Hai Tao²,Ma Qiu Rong¹,Xu Zhen Zhen¹

Affiliation:

1. Xi’an Jiaotong University

2. Tubular Goods Research Institute of China National Petroleum Corporation

Abstract

Crack tip opening displacement (CTOD) tests were carried out on different positions of X70, X80 and X100 pipe by three-point bend testing method. The results show that the crack propagation resistance and the tear modulus of base metal, heat affected zone (HAZ), and weld of X70 and X80 pipe are larger than that of X100 pipe. At the same time,The initial CTOD values and the CTOD values withmaximum load of X70 and X80 pipe are larger than that of X100 pipe.The test results suggest that the fracture toughness, crack initiation and propagation resistance of theX70 and X80 pipe are greater than that of X100 pipe, and the mechanismis analyzed finally.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

Link

https://www.scientific.net/KEM.525-526.425.pdf

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