Results 11 to 20 of about 694,109 (303)

Microstructure and mechanical properties of ultra-high strength TiCp/Mg-1.4Zn-2.6Ca-0.5Mn nanocomposite after hot extrusion

open access: yesJournal of Aeronautical Materials, 2020
A uniform distribution of TiCp nanoparticles was realized in the TiCp/Mg-1.4Zn-2.6Ca-0.5Mn nanocomposite fabricated by the method of ultrasonic-assisted semisolid stirring.
NIE Kaibo   +3 more
doaj   +1 more source

Atomistic Investigation on the Strengthening Mechanism of Single Crystal Ni-Based Superalloy under Complex Stress States

open access: yesMetals, 2022
Single crystal Ni-based superalloy, with excellent mechanical properties in high temperature, always works under complex stress states, including multiaxial tension and compression, which results in various strengthening mechanisms.
Bin Xie   +3 more
doaj   +1 more source

Strengthening and fracture mechanisms of a precipitation hardening high-entropy alloy fabricated by selective laser melting

open access: yesVirtual and Physical Prototyping, 2022
A precipitation hardening high-entropy alloy (HEA) (FeCoNi)86Al7Ti7 was fabricated by selective laser melting (SLM) and ageing treated under different temperatures and time conditions.
Yaowen Wu   +9 more
doaj   +1 more source

Research Status on Strengthening Mechanism of Particle-reinforced Metal Matrix Composites

open access: yesCailiao gongcheng, 2018
The research status on theoretic models and the coupling relationships of Orowan strengthening, dislocation strengthening, load-bearing effect of the reinforcement strengthening and others strengthening are successfully described in this study for ...
YE Xiang-ping   +4 more
doaj   +1 more source

Alternative characterizations of Boston mechanism [PDF]

open access: yes, 2012
Kojima and Ünver (2011) are the first to characterize the class of mechanisms coinciding with the Boston mechanism for some priority order. By mildly strengthening their central axiom, we are able to pin down the Boston mechanism outcome for every ...
Afacan, Mustafa Oguz   +1 more
core   +4 more sources

Study on the preparation process and sintering performance of doped nano-silver paste

open access: yesReviews on Advanced Materials Science, 2022
After tin–lead solders are banned, the widely used electronic packaging interconnect materials are tin–silver, tin–copper, and other alloy solders. With the application of high-power devices, traditional solders can no longer meet the new requirements ...
Yang Hui
doaj   +1 more source

An Overview of High Yield Strength Twinning-Induced Plasticity Steels

open access: yesMetals, 2021
Twinning-induced plasticity (TWIP) steel is a second-generation advanced high strength steel grade developed for automotive applications. TWIP steels exhibit an excellent combination of strength and ductility, mainly originating from the activation of ...
Guanghui Yang, Jin-Kyung Kim
doaj   +1 more source

Microstructure evolution and aging hardening in a Cu-25Ni-25Mn alloy

open access: yesMaterials Research Express, 2021
The microstructure evolution and mechanical property of Cu-25Ni-25Mn alloy after solution treatment and aging treatment are investigated via TEM observation, XRD analysis and Vickers hardness test.
Kang Ding   +7 more
doaj   +1 more source

Mechanism of action of probiotics [PDF]

open access: yes, 2013
The modern diet doesn't provide the required amount of beneficial bacteria. Maintenance of a proper microbial ecology in the host is the main criteria to be met for a healthy growth.
Balcazar JL   +45 more
core   +4 more sources

Nanoscale gold pillars strengthened through dislocation starvation [PDF]

open access: yes, 2006
It has been known for more than half a century that crystals can be made stronger by introducing defects into them, i.e., by strain-hardening. As the number of defects increases, their movement and multiplication is impeded, thus strengthening the ...
Greer, Julia R., Nix, William D.
core   +1 more source

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