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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...