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  1. No Access

    Article

    Influence of microstructure on thermal stability of ultrafine-grained Cu processed by equal channel angular pressing

    The well-established enhanced mechanical performance of ultrafine-grained (UFG) materials is often accompanied by poor thermal stability which precludes their use in some applications. To provide fundamental i...

    Ningning Liang, Yonghao Zhao, Y. Li, T. Top**… in Journal of Materials Science (2018)

  2. No Access

    Article

    Bulk Nanostructured Materials

    This paper will address three topics of importance to bulk nanostructured materials. Bulk nanostructured materials are defined as bulk solids with nanoscale or partly nanoscale microstructures. This category o...

    C. C. Koch, T. G. Langdon, E. J. Lavernia in Metallurgical and Materials Transactions A (2017)

  3. No Access

    Article

    Recent Progress in High Entropy Alloy Research

    Since their discovery in 2004, high-entropy alloys (HEAs) have generated significant interest from the scientific community. Based on a multi-principal element design approach, HEAs are engineered to possess ...

    B. E. MacDonald, Z. Fu, B. Zheng, W. Chen, Y. Lin, F. Chen, L. Zhang, J. Ivanisenko… in JOM (2017)

  4. No Access

    Article

    High-pressure torsion-induced phase transformations and grain refinement in Al/Ti composites

    High-pressure torsion (HPT) deformation of multiphase metallic systems produces a high density of interfaces and leads to atomic mixing between the constituent phases. Here we present a study of the interphase...

    Y. Sun, M. Aindow, R. J. Hebert, T. G. Langdon… in Journal of Materials Science (2017)

  5. No Access

    Article

    Process-Structure-Property Relationships for 316L Stainless Steel Fabricated by Additive Manufacturing and Its Implication for Component Engineering

    We investigate the process-structure-property relationships for 316L stainless steel prototy** utilizing 3-D laser engineered net sha** (LENS), a commercial direct energy deposition additive manufacturing ...

    Nancy Yang, J. Yee, B. Zheng, K. Gaiser, T. Reynolds… in Journal of Thermal Spray Technology (2017)

  6. No Access

    Article

    Texture evolution and mechanical behavior of commercially pure Ti processed via pulsed electric current treatment

    Spark plasma sintering is commonly utilized as a powder consolidation approach to fabricate high-performance ultrafine-grained bulk materials. In this study, a pulsed electric current, generated via spark plas...

    C. Yang, J. A. Lin, Y. F. Ding, W. W. Zhang, Y. Y. Li… in Journal of Materials Science (2016)

  7. No Access

    Article

    Influence of Nitrogen Content on Thermal Stability and Grain Growth Kinetics of Cryomilled Al Nanocomposites

    Nanocomposite powders of Al 5083/B4C were produced via cryogenic milling (cryomilling) of boron carbide (B4C) particles in Al 5083 matrix. The effect of milling time (up to 24 hours), and consequential nitrogen c...

    L. Hashemi-Sadraei, S. E. Mousavi, R. Vogt… in Metallurgical and Materials Transactions A (2012)

  8. No Access

    Article

    Optimization of Liquid Dynamic Compaction for Fe-Nd-B Magnet Alloys

    Permanent magnets from the Fe77Nd15B8 alloy were produced using liquid dynamic compaction (LDC). Process parameters such as gas and metal mass flow rates were carefully controlled to refine the microstructure. Ac...

    Mauri K. Veistinen, Y. Hara, E. J. Lavernia… in MRS Online Proceedings Library (2011)

  9. No Access

    Article

    High Temperature Corrosion of Spray-Atomized FeAl (40at.%) Based Alloys:Immersed in a Molten Salt Mixture of V2O5-Na2SO4

    We studied the high temperature corrosion of spray atomized and deposited FeAl40at% based intermetallic alloys immersed in a molten salt mixture of 80%V2O 5+20%Na2SO4 (wt%) over the temperature range of 600–900°C...

    M. Amaya, E. J. Lavernia, L. Martinez in MRS Online Proceedings Library (2011)

  10. No Access

    Chapter

    Melt Atomization

    The science and technology underlying the process of melt atomization is introduced, paying particular attention to relevant thermal, solidification and other transport phenomena. Melt atomization has now been...

    B. Zheng, E. J. Lavernia in Handbook of Atomization and Sprays (2011)

  11. Article

    Open Access

    Low-Cycle Fatigue of Ultra-Fine-Grained Cryomilled 5083 Aluminum Alloy

    The cyclic deformation behavior of cryomilled (CM) AA5083 alloys was compared to that of conventional AA5083-H131. The materials studied were a 100 pct CM alloy with a Gaussian grain size average of 315 nm and...

    J. L. Walley, E. J. Lavernia, J. C. Gibeling in Metallurgical and Materials Transactions A (2009)

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  12. Article

    Open Access

    Mechanical Behavior of Cryomilled Ni Superalloy by Spark Plasma Sintering

    The mechanical behavior of ultra-fine-grained (UFG) INCONEL 625 superalloy prepared via cryomilling and spark plasma sintering (SPS) was studied. The work-hardening response of the ultra-fine-grained (600 to 700 ...

    Z. Zhang, B.Q. Han, J.Y. Huang, Y.H. Han… in Metallurgical and Materials Transactions A (2009)

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  13. Article

    Open Access

    High-Velocity Oxygen Fuel Thermal Spray of Fe-Based Amorphous Alloy: a Numerical and Experimental Study

    The fabrication of dense coatings with appropriate properties using a high velocity oxygen fuel (HVOF) spray process requires an in-depth understanding of the complete gas flow field and particle behavior duri...

    L. Ajdelsztajn, J. Dannenberg, J. Lopez… in Metallurgical and Materials Transactions A (2009)

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  14. Article

    Open Access

    Processing and Behavior of Fe-Based Metallic Glass Components via Laser-Engineered Net Sha**

    In this article, the laser-engineered net sha** (LENS) process is implemented to fabricate net-shaped Fe-based Fe-B-Cr-C-Mn-Mo-W-Zr metallic glass (MG) components. The glass-forming ability (GFA), glass tran...

    B. Zheng, Y. Zhou, J. E. Smugeresky… in Metallurgical and Materials Transactions A (2009)

    Download PDF (1073 KB) View Article

  15. No Access

    Article

    Effect of water content on enthalpic relaxations in porcine septal cartilage

    Cartilage thermoforming is an emerging surgical technology which uses heat to accelerate stress relaxation in mechanically deformed tissue specimens. Heat induced shape change in cartilage is associated with c...

    Y. Chae, D. Protsenko, E. J. Lavernia… in Journal of Thermal Analysis and Calorimetry (2009)

  16. No Access

    Article

    Consolidation and Forging Methods for a Cryomilled Al Alloy

    The method used to consolidate a cryogenically ball-milled powder is critical to the retention of superior strength along with acceptable tensile ductility in the bulk product. In this study, gas-atomized Al 5...

    A.P. Newbery, B. Ahn, R.W. Hayes, P.S. Pao… in Metallurgical and Materials Transactions A (2008)

  17. No Access

    Article

    Thermal Behavior and Microstructure Evolution during Laser Deposition with Laser-Engineered Net Sha**: Part II. Experimental Investigation and Discussion

    The thermal behavior during laser-engineered net sha** (LENS) processing was numerically simulated using the alternate direction explicit finite difference method in Part I of this work. In this article, Par...

    B. Zheng, Y. Zhou, J.E. Smugeresky… in Metallurgical and Materials Transactions A (2008)

  18. No Access

    Article

    Thermal Behavior and Microstructural Evolution during Laser Deposition with Laser-Engineered Net Sha**: Part I. Numerical Calculations

    Laser-engineered net sha** (LENS) is a rapid direct manufacturing process. The LENS process can be analyzed as a sequence of discrete events, given that it is a layer-by-layer process. The thermal history as...

    B. Zheng, Y. Zhou, J.E. Smugeresky… in Metallurgical and Materials Transactions A (2008)

  19. No Access

    Article

    Microstructure and Properties of Laser-Deposited Ti6Al4V Metal Matrix Composites Using Ni-Coated Powder

    As a layer additive rapid manufacturing process, laser engineered net sha** (LENS) can fabricate three-dimensional components directly from a computer-aided design (CAD) model. In this work, the LENS process...

    B. Zheng, J.E. Smugeresky, Y. Zhou, D. Baker… in Metallurgical and Materials Transactions A (2008)

  20. No Access

    Chapter and Conference Paper

    Electron Tomography of ZnO Nanocones with Secondary Signals in TEM

    Electron tomography, which has been successfully utilized in life sciences, has attracted attention in materials science recently. Z-contrast imaging using a High Angle Annular Dark Field (HAADF) detector and ...

    V. Ortalan, Y. Li, E. J. Lavernia… in EMC 2008 14th European Microscopy Congress… (2008)

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