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  1. No Access

    Article

    Effect of Nb on improving the impact toughness of Mo-containing low-alloyed steels

    The microalloying of low-alloyed steels with Nb can improve the strength-to-toughness balance. Such an effect of Nb is usually ascribed to the refinement of the grain structure occurring in the austenite regim...

    H. C. Wang, C. Somsen, Y. J. Li, S. G. Fries, E. Detemple… in Journal of Materials Science (2019)

  2. No Access

    Article

    Impact of Heating–Cooling Rates on the Functional Properties of Ti–20Ta–5Al High-Temperature Shape Memory Alloys

    Due to their ability to provide a shape memory effect at elevated temperatures, high-temperature shape memory alloys (HT-SMAs) came into focus of academia and industry in the last decades. Ternary and quaterna...

    P. Krooß, C. Lauhoff, D. Langenkämper, A. Paulsen… in Shape Memory and Superelasticity (2019)

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    Rejuvenation of Single-Crystal Ni-Base Superalloy Turbine Blades: Unlimited Service Life?

    Rejuvenation of the initially hot isostatic pressing (HIP) heat-treated single-crystal Ni-base superalloy (SX) ERBO/1 was examined experimentally and via phase field simulation to establish rejuvenation treatment...

    B. Ruttert, O. Horst, I. Lopez-galilea… in Metallurgical and Materials Transactions A (2018)

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    Article

    Grain Nucleation and Growth in Deformed NiTi Shape Memory Alloys: An In Situ TEM Study

    The present study investigates the evolution of nanocrystalline (NC) and ultrafine-grained (UFG) microstructures in plastically deformed NiTi. Two deformed NiTi alloys were subjected to in situ annealing in a ...

    J. Burow, J. Frenzel, C. Somsen, E. Prokofiev… in Shape Memory and Superelasticity (2017)

  5. Article

    Cyclic Degradation of Co49Ni21Ga30 High-Temperature Shape Memory Alloy: On the Roles of Dislocation Activity and Chemical Order

    Conventional shape memory alloys (SMAs), such as binary Ni–Ti, are typically limited to service temperatures below 100 °C. Recent studies on Co–Ni–Ga high-temperature SMAs revealed the potential that these all...

    P. Krooß, P. M. Kadletz, C. Somsen, M. J. Gutmann… in Shape Memory and Superelasticity (2016)

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  6. Article

    Functional Fatigue and Tension–Compression Asymmetry in [001]-Oriented Co49Ni21Ga30 High-Temperature Shape Memory Alloy Single Crystals

    Conventional shape memory alloys cannot be employed for applications in the elevated temperature regime due to rapid functional degradation. Co–Ni–Ga has shown the potential to be used up to temperatures of ab...

    P. Krooß, T. Niendorf, P. M. Kadletz, C. Somsen… in Shape Memory and Superelasticity (2015)

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