Results 51 to 60 of about 9,560 (208)

Porosity evolution at the brittle-ductile transition in the continental crust: Implications for deep hydro-geothermal circulation

Scientific Reports, 2017
Recently, projects have been proposed to engineer deep geothermal reservoirs in the ductile crust. To examine their feasibility, we performed high-temperature (up to 1000 °C), high-pressure (130 MPa) triaxial experiments on granite (initially-intact and ...
M. Violay, M. J. Heap, M. Acosta, C. Madonna   +3 more
doaj   +1 more source

The Brittle–Ductile Transition and the Formation of Compaction Bands in the Savonnières Limestone: Impact of the Stress and Pore Fluid [PDF]

, 2022
Mustafa Sari, Joël Sarout, Thomas Poulet, J. Dautriat, Manolis Veveakis   +4 more
openalex   +1 more source

Toughness by design: multi-scale interpenetrating lattices with size-enhanced fracture resistance

npj Metamaterials
Architecture has long been used as a tool to enhance material toughness, but despite extensive research dedicated to studying toughening mechanisms, the role of feature size remains poorly understood.
Abdulaziz O. Alrashed, Zainab S. Patel, Kush Dwivedi, Benjamin C. White, Bryan Kaehr, Brad L. Boyce, Lucas R. Meza   +6 more
doaj   +1 more source

BRITTLE TO DUCTILE TRANSITION IN SILICON.

, 2016
The brittle to ductile transition in silicon is studied by four-point bend testing of specimens containing controlled flaws. A characteristic increase in fracture stress is observed at the transition temperature which is directly correlated to the generation and motion of dislocations at the crack tip.
Samuels, J, Roberts, S
openaire   +1 more source

Molecular-Weight-Dependent Interplay of Brittle-to-Ductile Transition in High-Strain-Rate Cold Spray Deposition of Glassy Polymers. [PDF]

ACS Omega, 2022
Gangineri Padmanaban A, Bacha TW, Muthulingam J, Haas FM, Stanzione JF, Koohbor B, Lee JH.   +6 more
europepmc   +1 more source

Brittle versus ductile transition of nanocrystalline metals

International Journal of Solids and Structures, 2008
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Yang, Fan, Yang, Wei
openaire   +2 more sources

The Influence of Temperature on the Fracture Toughness and Fracture Mechanism of Ferritic Nodular Cast Iron

Metals
Nodular Cast Iron (NCI, also known as ductile iron) is widely used in important components such as crankshafts for automotive engines and internal combustion engines, as well as storage and transportation containers for spent fuel in nuclear power plants,
Guobin Duan, Yu Jiang, Yongxin Zhang, Jibin Zhang, Xuechong Ren   +4 more
doaj   +1 more source

Material Removal Mechanisms in Ultra-High-Speed Machining

Engineering
Machining high-performance engineering materials, faces challenges including low machining efficiency, poor workpiece surface integrity, and rapid tool wear, which restrict high quality and efficient machining.
Hao Liu, Jianqiu Zhang, Qinghong Jiang, Bi Zhang   +3 more
doaj   +1 more source

Fractographic Analysis Of Selected Boron Steels Subjected To Impact Testing

Archives of Metallurgy and Materials, 2015
In this paper dynamic properties of low-alloy boron steels – Hardox 500, B27 and HTK 900H in delivered state (after hardening and tempering) are considered.
Dudziński W., Konat Ł., Białobrzeska B.   +2 more
doaj   +1 more source

The brittle-to-ductile transition - I: A cooperative dislocation generation instability

Scripta Metallurgica et Materialia, 1994
Most materials (with the possible exception of f.c.c. metals) exhibit the well-known brittle-to-ductile transition (BDT) with increase in temperature. The variation of the fracture toughness, (K), with temperature is usually gradual in the brittle regime, but a dramatic rapid increase occurs over a narrow temperature range where the sharp crossover ...
M. Khanta, V. Vitek, D.P. Pope
openaire   +1 more source