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  1. Article

    Open Access

    The Effect of Static Recrystallisation of Parent Austenite on the Lath Martensite Intervariant Boundary Network

    The current study investigated the effect of static recrystallisation (SRX) of parent austenite microstructure on the lath martensite intervariant boundary network. In general, the misorientation angle distrib...

    Ahmad Mirzaei, Peter D. Hodgson, **ang Ma in Metallurgical and Materials Transactions A (2024)

  2. Article

    Open Access

    New Insight into Toughness Enhancement in a Lath Martensitic Steel

    Grain refinement of the parent austenite led to a significant change in the intervariant boundary network of martensite, ultimately improving the mechanical properties (i.e., toughness and hardness). Molecular dy...

    Ahmad Mirzaei, Christopher D. Barrett in Metallurgical and Materials Transactions A (2024)

  3. Article

    Open Access

    The influence of parent austenite characteristics on the intervariant boundary network in a lath martensitic steel

    The influence of the parent austenite deformation state on the intervariant boundary network (i.e., population, plane orientation, and connectivity) of a lath martensitic microstructure was investigated using ...

    Ahmad Mirzaei, Razieh Ghaderi, Peter D. Hodgson, **ang Ma in Journal of Materials Science (2022)

  4. No Access

    Article

    Hybrid travelling wave/distance protection for HVDC transmission lines based on phase angles of characteristic harmonic impedances

    This paper presents a hybrid travelling wave/distance protection for HVDC transmission lines by constantly monitoring the phase angles of characteristic harmonic impedances, measured from one head of the line....

    Farzad Dehghan Marvasti, Ahmad Mirzaei in Electrical Engineering (2021)

  5. No Access

    Article

    Mixed matrix membranes on the basis of Matrimid and palladium-zeolitic imidazolate framework for hydrogen separation

    Gas separation membranes with enhanced performance were developed by the introduction of nanosized palladium particles. In this study, gas separation performance of Matrimid membrane incorporated with palladiu...

    Ahmad Mirzaei, Amir H. Navarchian, Shahram Tangestaninejad in Iranian Polymer Journal (2020)

  6. No Access

    Article

    On the Stacking Fault Energy Evaluation and Deformation Mechanism of Sanicro-28 Super-Austenitic Stainless Steel

    In the present study, the reliance of deformation mechanism of a super-austenitic steel (Sanicro-28) on the external stress and stacking fault energy (SFE) was quantitatively investigated by analyzing the stac...

    Mohammad Moallemi, Abbas Zarei-Hanzaki in Journal of Materials Engineering and Perfo… (2015)

  7. No Access

    Chapter

    Software-Defined Radio Receiver Architecture and RF-Analog Front-End Circuits

    Wireless bands and services are proliferating across the world. Every six months approximately, a new use for wireless appears, often leading to a new standard. Manufacturers of mobile handsets have a hard tim...

    Rahim Bagheri, Ahmad Mirzaei, Saeed Chehrazi in Digitally-Assisted Analog and RF CMOS Circ… (2011)