Results 61 to 70 of about 61,426 (293)

Elevated Temperature Oxidation and Corrosion of a Titanium Aluminide Alloy [PDF]

, 1997
Titanium aluminides are being developed to expand the temperature capability of titanium alloys with maximum service temperatures around 700*C. These materials also have the ability to replace nickel superalloys with potential applications in the high ...
Leggett, Jonathan, Leggett, J.
core  

Toward a better understanding of tool wear effect through a comparison between experiments and SPH numerical modelling of machining hard materials [PDF]

, 2009
The aim of this study is to improve the general understanding of tungsten carbide (WC–Co) tool wear under dry machining of the hard-to-cut titanium alloy Ti6Al4V. The chosen approach includes experimental and numerical tests.
Salaün, Michel, Chieragatti, Rémy, M. Salaün, GIROT, Franck, Espinosa, Christine, Girot, F., COUPARD, Dominique, Nouari, Mohammed, J. Limido, D. Coupard, R. Chieragatti, Calamaz, Madalina, F. Girot, C. Espinosa, M. Calamaz, M. Nouari, Coupard, D., Limido, Jérôme   +17 more
core   +1 more source

Productivity‐Driven Optimization of Laser Powder Bed Fusion Parameters for IN718 Superalloy: Process Control, Microstructure, and Mechanical Properties

Advanced Engineering Materials, EarlyView.
This study demonstrates how optimizing laser power, scanning speed, and hatching distance in laser powder bed fusion can boost the productivity of Inconel 718 manufacturing by up to 29% while maintaining mechanical integrity. The work delivers a validated process window and cost–time analysis, offering industry‐ready guidelines for efficient additive ...
Amir Behjat, Guido Barale, John Stavridis, Ehsan Norouzi, Jin‐Yoo Suh, Dong‐Ik Kim, Luca Iuliano, Abdollah Saboori   +7 more
wiley   +1 more source

Microstructure evolution of internal defect healing zone in ZTC4 titanium alloy during hot isostatic pressing

Journal of Aeronautical Materials
The internal displacement change around shrinkage pores，stress and strain distribution，and microstructural evolution in the defect healing zone of ZTC4 titanium alloy during hot isostatic pressing (HIP) are investigated by numerical simulation combined ...
GAO Wei, XU Qian, YIN Yajun, FENG Xin
doaj   +1 more source

Dielectric Barrier Discharge Plasma Deoxidation of Natively Oxide Layer of Copper Powders in a Fluidized Bed

Advanced Engineering Materials, EarlyView.
This paper presents a novel approach to reducing oxide layers on metal powders using low‐temperature hydrogen dielectric barrier discharge plasmas at atmospheric pressure. Unlike conventional hydrogen‐plasma reductions, the powders do not contact the plasma directly.
Shukang Zhang, Annett Wollmann, Thomas Gimpel, Alfred P. Weber   +3 more
wiley   +1 more source

Study of the corrosion behavior of cast Ti2AlNb alloy in HF–HNO3 solution

Journal of Materials Research and Technology
Based on immersion weight loss and electrochemical methods, the corrosion behavior of cast Ti2AlNb alloy in HF–HNO3 solution was investigated. The corrosion effects of HF and HNO3 on Ti2AlNb alloy were elucidated by examining the impact of varying ...
Yunyun Liu, Xianfei Ding, Lihong Wu, Xin Feng, Jiabin Zuo, Yunan Zhang, Lei Wen   +6 more
doaj   +1 more source

Surface Tension Measurement of Ti‐6Al‐4V by Falling Droplet Method in Oxygen‐Free Atmosphere

Advanced Engineering Materials, EarlyView.
In this article, the temperature‐dependent surface tension of free falling, oscillating Ti‐6Al‐4V droplets is investigated in both argon and monosilane doped, oxygen‐free atmosphere. Droplet temperature and oscillation are captured with one single high‐speed camera, and the surface tension is calculated with Rayleigh's formula.
Johannes May, Finn‐Lennard Janthur, Lena Kreie, Michael Müller, Sarah Seffer, Nick Schwarz, Jörg Hermsdorf, Thomas Hassel, Stefan Kaierle, Ludger Overmeyer   +9 more
wiley   +1 more source

Creating Ti–Fe α/β Alloys by Diffusion‐Driven Solid‐State Processing

Advanced Engineering Materials, EarlyView.
This study proposes making alloys containing fast diffusing elements that are difficult to produce by ingot metallurgy, by diffusion‐driven solid‐state HIP processing of elemental powders and low‐temperature homogenisation. Here, novel Fe‐Ti α–β alloys are formed having fine α–β lamellae, a small β prior grain size without significant intermetallics ...
Jiaqi Xu, Xun Zhang, Jack M. Donoghue, Albert D. Smith, Rahul Unnikrishnan, Rhys Thomas, Vahid Nekouie, Jie Luo, Dongchen Hu, Michael Preuss, Philip J. Withers   +10 more
wiley   +1 more source

Differentiated mechanical properties between additively manufactured and as-cast TC4 titanium alloy subject to deep cryogenic treatment regulation

Journal of Materials Research and Technology
To address the challenge of synergizing strength and ductility in laser-additively manufactured TC4 titanium alloy (Ti–6Al–4V), which forms non-equilibrium high-energy metastable structures due to rapid solidification, this study focuses on the ...
Z.J. Ji, C. Sun, H. Nan, J. Wang, J.Q. Liao, X.M. Zhao, G.R. Li, H.M. Wang   +7 more
doaj   +1 more source

Understanding the Stochastic Nature of Process Parameter Development of Blown Powder Laser Beam Directed Energy Deposition Additive Manufacturing of Pure Molybdenum

Advanced Engineering Materials, EarlyView.
Identified through the use of statistical design of experiments and metallographic investigation, this study exposes the stochastic origins of intergranular cracks in blown powder laser beam directed energy deposition additive manufacturing of pure molybdenum. It further demonstrates a successful crack mitigation approach with direct correlation to the
Nathaniel J. Lies, Daniel E. Driemeyer, Aaron P. Stebner   +2 more
wiley   +1 more source