Results 51 to 60 of about 80,219 (304)

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

open access: yesAdvanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth   +6 more
wiley   +1 more source

Research status on preparation and properties of RE hafnates for thermal/environmental barrier coatings

open access: yesJournal of Aeronautical Materials
The types,preparation methods,thermal and mechanical properties of rare earth hafnate materials and their corrosion behaviors exposed to low melting point silicate(CMAS) and high temperature water vapor are summarized.
SUN Zhipeng   +7 more
doaj   +1 more source

Production of Sponge Iron Powder by Reduction of a By-product of the Steelmaking Industry [PDF]

open access: yes, 2010
Ref. Revista/libro: Proceedings of the International Powder Metallurgy Congress & Exhibition (PM2010). Volumen I. Editors: European Powder Metallurgy Association (EPMA).
López Gómez, Félix Antonio   +3 more
core  

Investigation of Thermo‐Chemical Processes in Commercial MgO‐C Refractory Bricks With and Without MgO‐C Recyclate at Elevated Temperatures

open access: yesAdvanced Engineering Materials, EarlyView.
This study investigates thermo‐chemical processes during high‐temperature testing of two commercial MgO‐C brick grades, one containing 47.5 wt.% MgO‐C recyclate. Using ETV, DTA/TG‐MS, XRD, and SEM/EDS/EBSD, mechanisms such as carbothermal reduction of magnesia, impurity incorporation into the secondary MgO surface layer, and calcium‐rich phase ...
Alexander Schramm   +6 more
wiley   +1 more source

Fabrication and mechanical properties of gradient-structured W–Ni–Fe–Mo/Co tungsten heavy alloys

open access: yesFenmo yejin jishu
Gradient-structured tungsten heavy alloys with spatially graded mechanical properties can effectively resolve the strength-ductility trade-off in conventional homogeneous tungsten alloys. The high-strength 93W–Ni–Fe–Mo alloys and high-ductility 90W–Ni–Fe–
MENG Ziqi   +6 more
doaj   +1 more source

Powder metallurgy processed metal-matrix friction materials for space applications

open access: yesFriction, 2017
Owing to the increasing demand for tribological brakes for space applications, the development of novel materials and advanced technologies is necessary.
Yelong Xiao   +5 more
doaj   +1 more source

Thermophysical Properties of the Desulphurization Slags With Various CaS and CaO/Al2O3 Ratio

open access: yesAdvanced Engineering Materials, EarlyView.
This article investigates how CaS content and the CaO/Al2O3 ratio influence the thermophysical properties of desulphurization slags. Using experimental measurements and thermodynamic simulations, this study reveals complex effects on viscosity, surface tension, and density, providing new insight into slag structure and phase behavior under ...
Eldar Salpagarov   +4 more
wiley   +1 more source

Die design of powder metallurgy hand tight nuts used for power tools

open access: yesFenmo yejin jishu
The structure of powder metallurgy hand tight nuts used for power tools is complex. The reasonable die structure and size were found out in this paper by the careful analysis of product structure and forming process, combining with 3D design software and
SUN Lichen   +3 more
doaj   +1 more source

The casting and powder-metallurgy forming of precipitation-hardenable stainless steels [PDF]

open access: yes
Casting and powder metallurgy techniques for shaping precipitation hardened stainless ...
Barth, V. D.   +2 more
core   +1 more source

Study of the properties of low-cost powder metallurgy titanium alloys by 430 stainless steel addition [PDF]

open access: yes, 2014
Titanium is a lightweight metal with an outstanding combination of properties which make it the material of choice for many different applications. Nonetheless, its employment at industrial level is not widespread due to higher production costs with ...
Bolzoni, Leandro   +4 more
core   +2 more sources

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