Results 71 to 80 of about 1,337,836 (332)

A Perspective on Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed Stainless Steels

Advanced Engineering Materials, EarlyView.
This perspective article explores an innovative powder metallurgical approach to producing high‐nitrogen steels by utilizing a mixture of stainless steel and Si3N4. This mixture undergoes hot isostatic pressing followed by direct quenching. The article also examines adapting this method to laser powder bed fusion (PBF‐LB/M) to overcome nitrogen ...
Louis Becker, Felix Radtke, Jonathan Lentz, Simone Herzog, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

A Novel Approach on Rapid Alloy Development of Tool Steels for Laser Powder Bed Fusion by In Situ Alloying

Advanced Engineering Materials, EarlyView.
A novel approach for alloy development in laser powder bed fusion is introduced. Instead of producing massive samples of one composition at a time, prepressed powder bed samples produced from powder mixtures are processed. Guidelines for the selection of precursor powders are developed.
Felix Großwendt, Anna Strauch, Jonathan Lentz, Arne Röttger, Rainer Fechte‐Heinen, Sebastian Weber, Werner Theisen   +6 more
wiley   +1 more source

Strengthening Your Hip Muscles: Some Exercises May Be Better Than Others [PDF]

, 2014
Weak hip muscles lead to poor hip motion, and poor hip motion can cause knee, hip, and back pain. Strengthening hip muscles that control how hips move may reduce pain in these parts of the body.
Draper, Kaylee, Draper, Kelsey, Ulin, Amanda   +2 more
core   +1 more source

A randomised controlled trial of total hip arthroplasty versus resurfacing arthroplasty in the treatment of young patients with arthritis of the hip joint [PDF]

, 2010
Background: Hip replacement (arthroplasty) surgery is a highly successful treatment for patients with severe symptomatic arthritis of the hip joint. For older patients, several designs of Total Hip Arthroplasty have shown excellent results in terms of ...
Achten, Juul, Costa, Matthew L., Edlin, Richard P., Griffin, Damian R., Parsons, Nicholas R.   +4 more
core   +2 more sources

Powder Metallurgy and Additive Manufacturing of High‐Nitrogen Alloyed FeCr(Si)N Stainless Steel

Advanced Engineering Materials, EarlyView.
The alloying element Nitrogen enhances stainless steel strength, corrosion resistance, and stabilizes austenite. This study develops austenitic FeCr(Si)N steel production via powder metallurgy. Fe20Cr and Si3N4 are hot isostatically pressed, creating an austenitic microstructure.
Louis Becker, Felix Radtke, Jonathan Lentz, Santiago Benito, Christoph Broeckmann, Sebastian Weber   +5 more
wiley   +1 more source

Stroke-related Changes in Neuromuscular Fatigue of the Hip Flexors and Functional Implications [PDF]

, 2012
Objective: The aim of this study was to compare stroke-related changes in hip flexor neuromuscular fatigue of the paretic leg during a sustained isometric submaximal contraction with those of the nonparetic leg and controls and to correlate fatigue with ...
Heitz, Robert, Hunter, Sandra K., Hyngstrom, Allison, Onushko, Tanya, Rutkowski, Anthony, Schmit, Brian D.   +5 more
core   +2 more sources

Reply to Letter: Real‐World Clinical Experience With Serum MOG and AQP4 Antibody Testing by Live Versus Fixed Cell‐Based Assay

Annals of Clinical and Translational Neurology, EarlyView.
Yana Said, Conlan Tran, LuAnn Rezavi, Patrizio Caturegli, Eoin P. Flanagan, Elias S. Sotirchos   +5 more
wiley   +1 more source

Laser Additive Manufacturing of Oxide‐Dispersion‐Strengthened Steels: A Simulation‐Based Comparison Between Powder Bed Fusion and Direct Energy Deposition

Advanced Engineering Materials, EarlyView.
Controlling the size and distribution of dispersoids is essential for optimizing the performance of oxide‐dispersion‐strengthened steels. This study focuses on nanoparticle dispersion and agglomeration during laser additive manufacturing of Fe20Cr alloy reinforced with ZrO 2 nanoparticles. Utilizing multiphysics phase‐field simulations and nanoparticle
Somnath Bharech, Yangyiwei Yang, Timileyin David Oyedeji, Prasanth Bondi, Mareen Goßling, Bilal Gökce, Bai‐Xiang Xu   +6 more
wiley   +1 more source

Mechanical and Microstructural Effects of ZrO2 Nanoparticles in Fe20Cr Oxide Dispersion‐Strengthened Alloys Processed by Laser Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
The influence of oxide nanoparticle synthesis route and concentration on microstructure and high‐temperature performance of additively manufactured oxide dispersion‐strengthened steels is investigated. Comparing laser‐generated and chemically synthesized ZrO2 nanoparticles, the study reveals how dispersion quality, crystal structure and particle size ...
Mareen Goßling, Silja‐Katharina Rittinghaus, Felix Radtke, Abdelrahman Elsayed, Marina Macias Barrientos, Ulf Ziesing, Louis Becker, Ihsan Murat Kuşoğlu, Christoph Broeckmann, Ulrich Krupp, Avinash Hariharan, Sebastian Weber, Bilal Gökce   +12 more
wiley   +1 more source

Combined Transfer of the Gluteus Maximus and Tensor Fasciae Latae for Irreparable Gluteus Medius Tear Using Contemporary Techniques

JBJS Open Access, 2020
Background:. Combined transfer of the gluteus maximus and tensor fasciae latae (TFL) has been acknowledged as a treatment for irreparable full-thickness gluteus medius tears; yet, there is a paucity of reports on outcomes for this topic in the current ...
David R. Maldonado, MD, Shawn Annin, MD, Jeffrey W. Chen, BA, Mitchell J. Yelton, BS, Jacob Shapira, MD, Philip J. Rosinsky, MD, Ajay C. Lall, MD, MS, Benjamin G. Domb, MD   +7 more
doaj   +1 more source