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Xiaobo Ren

Senior Research Scientist

Xiaobo Ren

Senior Research Scientist

Xiaobo Ren
Phone: 966 90 027
Mobile: 966 90 027
Department: Materials and Nanotechnology
Office: Trondheim

publications and responsibilities

Publications

Publication

A special notched tensile specimen to determine the flow stress-strain curve of hardening materials without applying the Bridgman correction

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1467315

Structural integrity assessment of weldments requires the input of flow stress-strain curve of each individual material zone. To cope with these challenges, a cylindrical cross weld tensile specimen with a notch located either in the weld metal, base metal or possibly heat affected zone has been pre...

Authors Tu Shengwen Ren Xiaobo Nyhus Bård Akselsen Odd Magne He Jianying Zhang Zhiliang
Year 2017
Type Journal article
Publication

Brittle fracture arrest - The state of art in a multiscale universe

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1399217

This state-of-the-art paper is devoted to testing and evaluation of microstructural crack arrest. Testing and analysis of crack arrest have developed in the last decades, enhancing our understanding of the mechanisms behind crack arrest in a continuum mechanics perspective. Understanding crack arres...

Authors Snartland Brage Dahl Østby Erling Hauge Mons Ren Xiaobo Thaulow Christian
Year 2016
Type Journal article
Publication

Assessment of low temperature toughness in welding of extra low carbon steel for Arctic application

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1399758

For steel structures to be installed in the Arctic region, the risk of brittle fracture represents a primary concern due to the ductile to brittle usually transition taking place at sub-zero temperatures. Therefore, the present investigation addressed the heat affected zone and weld metal toughness ...

Year 2016
Type Journal article
Publication

Properties in submerged arc welding of X80 plate for Arctic applications

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1280114

Pipelines for transport of oil and gas in Arctic areas are subjected to some extreme challenges; among these being low temperatures. Thus, the steel behaviour with respect to the ductile to brittle transition will be important. Moreover, when the design temperature falls down to -50 to -60°C, the to...

Year 2015
Type Conference paper/Book chapter
Publication

Fatigue properties of a 420 MPa structural steel at low temperature

http://www.sintef.no/en/publications/publication/?pubid=CRIStin+1280116

The exploration of oil and gas fields in the arctic brings several challenges in the use of structural steels concerning their low-temperature properties. Among others, fatigue behavior needs also to be considered for arctic applications, despite little attention to fatigue at low temperature has be...

Year 2015
Type Conference paper/Book chapter
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