Photo of Ru Peng

Ru Peng

Professor

Enhancing surfaces for performance and durability

Surface engineering is a cost-effective way to improve the performance of materials. I am working in the field of materials research focusing on two different topics, namely residual stresses and high temperature coatings.

Residual stresses in engineering materials

The properties of engineering materials such as resistance to fatigue or stress corrosion cracking can be affected by residual stresses originating from different manufacturing processes. I have long research experience in the field, working with different research projects varying from studying residual stresses from various manufacturing processes to analyzing the mechanical/fatigue behavior with regard to residual stresses and microstructure. My specialties are X-ray and neutron diffraction techniques and scanning electron microscopy. My main research interests in the field are given below:
  • Residual stress generation and characterization
  • Fatigue with regard to manufacturing effect
  • In-situ diffraction study of material behavior¬†
  • Stress corrosion cracking

High Temperature Coatings

High temperature coatings are designed and used to protect metallic components operating in the hot sections of advanced engines. The resistance of such coatings against service induced coating degradation is critical for the performance and durability of the components. My research in the field focuses on optimizing the coatings resistance against degradation, which includes development, characterisation and modelling of metallic coatings for oxidation and corrosion protection and thermal barrier coatings which also provide heat isolation. 

Publications

2024

Pavel Romanov, Arvid Jahedi, Anders Carlestam, Bahram Moshfegh, Viktor Norman, Ru Peng, Mattias Calmunger (2024) Hardening of Cylindrical Bars with Water Impinging Jet Quenching Technique Steel Research International Continue to DOI
Rebecka Lindvall, Kevin Monroe Diaz, Ru Peng, Oleksandr Gutnichenko, Sebastian Siren, Lena Magnusson Aberg, Susanne Norgren, Rachid M'Saoubi, Volodymyr Bushlya, Jan-Eric Stahl (2024) Wear mechanisms in Ti(C,N)-Al2O3 coated carbide during sustainable machining CGI International journal of refractory metals & hard materials, Vol. 119, Article 106550 Continue to DOI

2023

Jingchen Li, Yuting Wu, Liang Liu, Ru Peng, Jinghao Xu, Jian He, Hongbo Guo (2023) The inhibiting effect of Re-rich layer on the interdiffusion between NiAl and Ni3Al-based superalloy and its degradation Journal of Alloys and Compounds, Vol. 957, Article 170404 Continue to DOI
H. Yang, N. Wang, Y. D. Wang, Ru Lin Peng, S. L. Li (2023) Origin of quasi-linear superelasticity at high temperature in Ni-Mn-Ga-Co shape memory alloy Intermetallics (Barking), Vol. 162, Article 108001 Continue to DOI
Luqing Cui, Dunyong Deng, Shuang Jiang, Ru Peng, Tongzheng Xin, Honghong Zhang, Zoltan Hegedues, Ulrich Lienert, Weifeng He, Johan Moverare (2023) New insights into the anisotropic ductility of additively manufactured Inconel 718 International journal of plasticity, Vol. 169, Article 103738 Continue to DOI

Publications

2024

Pavel Romanov, Arvid Jahedi, Anders Carlestam, Bahram Moshfegh, Viktor Norman, Ru Peng, Mattias Calmunger (2024) Hardening of Cylindrical Bars with Water Impinging Jet Quenching Technique Steel Research International Continue to DOI
Rebecka Lindvall, Kevin Monroe Diaz, Ru Peng, Oleksandr Gutnichenko, Sebastian Siren, Lena Magnusson Aberg, Susanne Norgren, Rachid M'Saoubi, Volodymyr Bushlya, Jan-Eric Stahl (2024) Wear mechanisms in Ti(C,N)-Al2O3 coated carbide during sustainable machining CGI International journal of refractory metals & hard materials, Vol. 119, Article 106550 Continue to DOI

2023

Jingchen Li, Yuting Wu, Liang Liu, Ru Peng, Jinghao Xu, Jian He, Hongbo Guo (2023) The inhibiting effect of Re-rich layer on the interdiffusion between NiAl and Ni3Al-based superalloy and its degradation Journal of Alloys and Compounds, Vol. 957, Article 170404 Continue to DOI

Surface engineering research at LiU