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  1. No Access

    Article

    Influence of Process Parameters on Microstructure Evolution During Hot Deformation of a Eutectic High-Entropy Alloy (EHEA)

    High-entropy alloys (HEAs) have shown unique combinations of strength and ductility along with other properties after optimized thermomechanical processing (TMP). In this study, the hot deformation of an AlCoC...

    M. Zaid Ahmed, K. Chadha, S. R. Reddy… in Metallurgical and Materials Transactions A (2020)

  2. No Access

    Article

    The Effect of Retained Work Hardening on the Driving Force for Dynamic Transformation

    The driving force for dynamic transformation during double-hit hot compression of an as-cast medium-carbon low-alloy steel assessed done at 1473 K at strain rates of 0.25 and 0.50 s−1. Dynamically transformed fer...

    K. Chadha, C. Aranas Jr., D. Shahriari… in Metallurgical and Materials Transactions A (2020)

  3. No Access

    Article

    Deformation and Recrystallization Behavior of the Cast Structure in Large Size, High Strength Steel Ingots: Experimentation and Modeling

    Constitutive modeling of the ingot breakdown process of large size ingots of high strength steel was carried out through comprehensive thermomechanical processing using Gleeble 3800® thermomechanical simulator, f...

    K. Chadha, D. Shahriari, R. Tremblay… in Metallurgical and Materials Transactions A (2017)

  4. No Access

    Article

    On the Occurrence of Liquation During Linear Friction Welding of Ni-Based Superalloys

    A combination of experimental and analytical methods was used to study the possible occurrence of liquation during LFW of the newly developed AD730TM Ni-based superalloy. LFWed joints were produced using a semi-i...

    F. Masoumi, D. Shahriari, M. Jahazi… in Metallurgical and Materials Transactions A (2017)

  5. No Access

    Article

    Characteristics of Austenite Transformation During Post Forge Cooling of Large-Size High Strength Steel Ingots

    The application of large-size plastic injection molds is continuously increasing in automotive and aerospace industries. Having uniform hardenability over the entire volume of the large forged steel blocks is ...

    S. M. Chentouf, M. Jahazi… in Metallography, Microstructure, and Analysis (2014)

  6. Article

    Microstructure Evolution During Transient Liquid Phase Bonding of Alloy 617

    Transient liquid phase bonding was used to join Alloy 617 alloy using nickel-based filler metal (Ni–P 11 wt%) with P as the melting point depressant element. The influences of interlayer thickness, 25.4 and 38...

    F. Jalilian, M. Jahazi, R. A. L. Drew in Metallography, Microstructure, and Analysis (2013)

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  7. No Access

    Article

    Mechanical Property and Microstructure of Linear Friction Welded WASPALOY

    The mechanical properties and microstructural evolution of WASPALOY joined by linear friction welding (LFW) were investigated in this study. In-situ temperature measurements using thermocouple probes indicated ex...

    A. Chamanfar, M. Jahazi, J. Gholipour… in Metallurgical and Materials Transactions A (2011)

  8. No Access

    Article

    Recrystallization during Thermomechanical Processing of IMI834

    The microstructure development of the near-α titanium alloy IMI834 displaying an initial bimodal α + β microstructure has been characterized with respect to dynamic and static β recrystallization, through quantit...

    P. Vo, M. Jahazi, S. Yue in Metallurgical and Materials Transactions A (2008)

  9. No Access

    Article

    Dwell Fatigue Microstructure in a Near-α Titanium Alloy

    The dwell fatigue microstructure of a near-α titanium alloy was studied by optical microscopy and transmission electron microscopy. Optical microscopy revealed primary α grains as being crack initiation sites. Th...

    X. Wang, P. Vo, M. Jahazi, S. Yue in Metallurgical and Materials Transactions A (2007)

  10. No Access

    Article

    Linear friction welding of Ti-6Al-4V: Processing, microstructure, and mechanical-property inter-relationships

    The linear friction welding behavior of Ti-6Al-4V was investigated using varying processing conditions of frequency (15 to 70 Hz), amplitude (1 to 3 mm), pressure (50 to 90 MPa), and axial shortening (1 to 2 m...

    P. Wanjara, M. Jahazi in Metallurgical and Materials Transactions A (2005)

  11. No Access

    Article

    Deformation characteristics of isothermally forged UDIMET 720 nickel-base superalloy

    The hot deformation behavior of nickel-base superalloy UDIMET 720 in solution-treated conditions, simulating the forging process of the alloy, was studied using hot compression experiments. Specimens were defo...

    H. Monajati, A. K. Taheri, M. Jahazi, S. Yue in Metallurgical and Materials Transactions A (2005)