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Xiaobo Ren

Senior Research Scientist

Xiaobo Ren

Senior Research Scientist

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

Publications and responsibilities

Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1812385

Deposition patterns can significantly affect residual stress distribution in additive manufacturing processes. In this paper, a novel deposition pattern, the S-pattern, is proposed for the additive manufacturing process. The finite element method is used to study the temperature and stress field of ...

Authors Sun Li Ren Xiaobo He Jianying Zhang Zhiliang
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1805041

High-power lasers are very effective in welding of plates thicker than 10 mm due to the keyhole mode. High-power intensity generates a vapor-filled cavity which provides substantial penetration depth. Due to the narrow and deep weld geometry, there is susceptibility to high hardness and weld defects...

Authors Bunaziv Ivan Dørum Cato Nielsen Steen Erik Suikkanen Pasi Ren Xiaobo Nyhus Bård Eriksson Magnus Carl Fredrik Akselsen Odd Magne
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1801786

Welds made by high power laser beam have deep and narrow geometry. Addition of filler wire by the arc source, forming the laser-arc hybrid welding (LAHW) process, is very important to obtain required mechanical properties. Distribution of molten wire throughout the entire weld depth is of concern si...

Authors Bunaziv Ivan Wenner Sigurd Ren Xiaobo Frostevarg Jan Kaplan Alexander F.H. Akselsen Odd Magne
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1801783

For many years, the oil and gas industry has utilized superduplex stainless steels due to their high strength and excellent corrosion resistance. Wire arc additive manufacturing (WAAM) was used with superduplex filler wire to create walls with different heat input. Due to the multiple heating and co...

Authors Lervåg Malin Sørensen Camilla Robertstad Andreas Brønstad Bård M. Nyhus Bård Eriksson Magnus Carl Fredrik Aune Ragnhild Ren Xiaobo Akselsen Odd Magne Bunaziv Ivan
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1742547

The effect of residual stress on fracture of materials or structures has been widely studied. However, its influence on ductile-to-brittle transition (DBT), a crucial phenomenon of structural materials, has rarely been investigated so far. In the present study, employing the eigenstrain method resid...

Authors Li Yang Ren Xiaobo He Jianying Zhang Zhiliang
Year 2020
Type Journal publication
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1814616

The RCN competence project ROP was initiated in January 2014, with the main objective to establish basic knowledge on subsea hyperbaric repair welding and degradation of clad and lined pipes, as well as C-Mn steel. The project is motivated by the need for improving the contingency situation and incr...

Authors Olden Vigdis Lindholm Dag Fjær Hallvard Gustav Rudshaug Magne Aune Ragnhild Ren Xiaobo
Year 2019
Type Report/thesis
Publication
https://www.sintef.no/en/publications/publication/?pubid=CRIStin+1750275

Laser beam welding (LBW) and laser-arc hybrid welding (LAHW) are attractive joining methods of medium thickness (10-20 mm) plates in a single pass welding technique. Both utilize high energy process in order to achieve high penetration depth and high welding speeds offering substantial increase in p...

Authors Bunaziv Ivan Dørum Cato Ren Xiaobo Eriksson Magnus Carl Fredrik Akselsen Odd Magne
Year 2019
Type Journal publication