Results 81 to 90 of about 2,514 (216)

Development of columbium alloy WC3015 [PDF]

open access: yes
Effect of changes in basic composition and additions of alloying elements on mechanical properties of niobium alloy ...
Tavassoli, A. A.
core   +1 more source

Ductile–Brittle Transition Mechanism and Dilute Solution Softening Effect of Body-Centered Cubic Metals

open access: yesMetals
Body-centered cubic (BCC) metals, extensively utilized in low-alloy high-strength steels and heat-resistant alloys, exhibit a pronounced ductile–brittle transition (DBT) at cryogenic temperatures, marked by a well-defined yet narrow ductile–brittle ...
Jie Zhang   +4 more
doaj   +1 more source

Thermal aging effects in refractory metal alloys [PDF]

open access: yes
The alloys of niobium and tantalum are attractive from a strength and compatibility viewpoint for high operating temperatures required in materials for fuel cladding, liquid metal transfer, and heat pipe applications in space power systems that will ...
Stephens, J. R.
core   +1 more source

The present SP tests for determining the transition temperature TSP on "U" notch disc specimens [PDF]

open access: yes, 2017
The principal difference between the small punch (SP) testing technique and standardized impact testing lies in the fact that the SP tests carried out in accordance with CWA 15627 Small Punch Test Method for Metallic Materials use disc-shaped test ...
Dorazil, Ondřej   +2 more
core   +1 more source

A procedural and technical experimental review on material tensile and impact properties under cryogenic temperatures [PDF]

open access: yesE3S Web of Conferences
In this paper, research and comparison of tensile and impact properties were conducted on several materials broadly categorized as Steel and Alloys at cryogenic temperature of 77 K or -196°C.
Ahzhan M. F. A.   +7 more
doaj   +1 more source

Indentation plasticity and fracture in silicon [PDF]

open access: yes
Measurements of the ductile-brittle transition temperature of heavily doped silicon were carried out using indentation techniques. Diamond pyramid hardness tests were performed on the (100) face of heavily doped N-type and P-type and intrinsic silicon ...
Pirouz, P., Rybicki, George C.
core   +1 more source

Tempering temperature effect on the static and impact properties of 51CrV4 and 55Cr3 spring steels

open access: yesMaterials Research Express
This study investigated the impact of tempering temperature on the mechanical properties and microstructure of 51CrV4 and 55Cr3 spring steels, which are commonly utilized in the manufacturing of leaf springs.
Gülcan Toktaş, Adem Biçer
doaj   +1 more source

Controlling Variability in Mechanical Properties of Plates by Reducing Centerline Segregation to Meet Strain-Based Design of Pipeline Steel

open access: yesMetals, 2019
Low variability in mechanical properties is required for pipeline project designs to meet a strain-based design, which is used in regions of large ground movements.
Fujian Guo   +4 more
doaj   +1 more source

Microstructure and temperature dependence of the microhardness of W-4V-1La₂O₃ and W-4Ti-1La₂O₃ [PDF]

open access: yes, 2013
This study is presented of: The Fifteenth International Conference on Fusion Reactor Materials (ICFRM-15) was held October 16–22, 2011, at the Charleston Marriott Hotel in Charleston, South CarolinaW–4V–1La₂O₃ and W–4Ti–1La₂O₃ (wt.%) alloys have been ...
Martinez, J.   +4 more
core   +2 more sources

Microstructural optimization by two-step tempering treatment and quantitative analysis of microstructure effect on the toughness at −40 °C in CrNiMoV steel

open access: yesJournal of Materials Research and Technology
30CrNiMoV steel is widely used in engineering applications, where, in addition to high strength requirements, the demand for enhanced toughness is increasingly critical for safety. This study proposes a novel two-step tempering process that optimizes the
Li Wang   +5 more
doaj   +1 more source

Home - About - Disclaimer - Privacy