Results 81 to 90 of about 80,219 (304)

Processing and Ductile-Brittle Transitions in PM Manganese Steels [PDF]

, 2005
YesBrittleness in manganese steels can be associated with processing in a "wet¿ [micro]climate resulting in the formation of continuous oxide networks.
Cias, A., Mitchell, Stephen C.
core  

Impact of Sustainable Binders Based on Lignin and Collagen on the Volume Stability and Mechanical Properties of MgO‐C Refractories with MgO‐C Recyclates

Advanced Engineering Materials, EarlyView.
Collagen hydrolysate is evaluated as a sustainable binder for MgO‐C refractories. Its thermally induced cross‐linking and gas release lead to expansion and cracking in large bricks, but tailored batches with lignin, recyclates, or fine graphite improve the gas release while thermal treatment and stability.
Till M. J. Stadtmüller, Florian Kerber, Kirsten Moritz, Steffen Dudczig, Konstantin Kraushaar, Thomas Schemmel, Jana Hubálková, Patrick Gehre, Christos G. Aneziris   +8 more
wiley   +1 more source

Strong and wide microwave absorption of multilayered metastructure enhanced by impedance matching mechanism

Results in Physics
The present study proposes a strong and wide microwave absorption of multilayered metastructure (SWMAMM) capable of achieving an ultra-wideband absorption of −20 dB and 60° oblique incidence. SWMAMM primarily consists of metasurface-Ⅰ (MS-Ⅰ), metasurface-
Zheyipei Ma, Yanqiong Liu, Chao Jiang
doaj   +1 more source

P/M superalloys: A troubled adolescent? [PDF]

The history of powder metallurgy P/M superalloy technology is reviewed with a comment on the state of the art, and speculates on the technology's future potential growth and ...
Dreshfield, R. L., Gray, H. R.
core   +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

Research progress in thermomechanical treatment process of TiAl alloys

Journal of Aeronautical Materials
TiAl alloys have attracted much attention due to its excellent specific strength，specific stiffness，and high-temperature performance，which has great potential for application in the aerospace industry.
WANG Yan, LUO Yaofeng, HE Jingjun, HU Qing, LIU Bin, LIU Yong   +5 more
doaj   +1 more source

Metallurgy and properties of plasma spray formed materials [PDF]

Understanding the fundamental metallurgy of vacuum plasma spray formed materials is the key to enhancing and developing full material properties. Investigations have shown that the microstructure of plasma sprayed materials must evolve from a powder ...
Liaw, Y. K., Mckechnie, T. N., Poorman, R. M., Zimmerman, F. R.   +3 more
core   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

STRUCTURE FORMATION OF WEAR RESISTANT COMBINED TITANIUM-BASED COATINGS ON HIGH SPEED STEEL

Наука и техника, 2006
The paper proposes a technology of wear resistant coating formation on the basis of Ti. The combined technology includes electro arc evaporation in vacuum and ionic nitriding.
M. A. Andreyev, T. A. Kuznetsova, L. V. Markova   +2 more
doaj   +1 more source

Materials for Advanced Turbine Engines [PDF]

An attempt was made to improve methods for producing powder metallurgy aircraft gas turbine engine parts from the nickel base superalloy known as Rene 95.
Gorsler, R. W., Mosier, J. S., Peebles, R. E., Pfouts, W. R., Shamblen, C. E.   +4 more
core   +1 more source