Results 11 to 20 of about 19,335 (278)

Rejuvenation Heat Treatment of the Second-Generation Single-Crystal Superalloy DD6 [PDF]

open access: yesActa Metallurgica Sinica (English Letters), 2015
The second-generation single-crystal superalloy DD6 with [001] orientation was prepared by screw selecting method in the directionally solidified furnace. The long-term aging of the alloy after full heat treatment was performed at 1100 °C for 400 h. Then the rejuvenation heat treatment 1300 °C/4 h/AC + 1120 °C/4 h/AC + 870 °C/24 h/AC was carried out ...
Zhen-Xue Shi, Shi-Zhong Liu, Jia-Rong Li
openaire   +1 more source

Atomistic modeling of heat treatment processes for tuning the mechanical properties of disordered solids [PDF]

open access: yes, 2019
We investigate the effect of a single heat treatment cycle on the potential energy states and mechanical properties of metallic glasses using molecular dynamics simulations.
Priezjev, Nikolai V.
core   +3 more sources

Eye damage due to cosmetic ultrasound treatment: a case report

open access: yesBMC Ophthalmology, 2018
Background Rejuvenation of aging eyelids is one of cosmetic changes to the individual to create the appearance of youth. Tightening treatment of eyelid by ultrasonic heat could possibly develop acute eye injury, including acute increase of IOP, cataract ...
Yuanyuan Chen, Zhongyu Shi, Yin Shen
doaj   +1 more source

Cell aging preserves cellular immortality in the presence of lethal levels of damage. [PDF]

open access: yes, 2019
Cellular aging, a progressive functional decline driven by damage accumulation, often culminates in the mortality of a cell lineage. Certain lineages, however, are able to sustain long-lasting immortality, as prominently exemplified by stem cells.
Chao, Lin   +4 more
core   +3 more sources

Effects of Bipolar Radiofrequency on Collagen Synthesis from Patients with Brachial Ptosis

open access: yesPlastic and Reconstructive Surgery, Global Open, 2023
Background:. Radiofrequency is frequently used for skin rejuvenation, localized fat elimination and cellulite treatment. It prompts the expression of thermal shock proteins that lead to dermal thickening as a result of collagen synthesis.
Laura C. Cala Uribe, MD   +8 more
doaj   +1 more source

Relaxation dynamics of Fe55Cr10Mo14C15B6 metallic glass explored by mechanical spectroscopy and calorimetry measurements [PDF]

open access: yes, 2016
In this work, the mechanical relaxation dynamics of Fe55Cr10Mo14C15B6 metallic glass is explored by mechanical spectroscopy. The temperature-dependent loss modulus E″(T) shows the features of β relaxation well below glass transition temperature Tg.
Crespo Artiaga, Daniel   +3 more
core   +2 more sources

Processing induced nanoscale heterogeneity impact on the mechanical and electrical behavior of Cu–Zr thin film metallic glasses

open access: yesResults in Surfaces and Interfaces, 2023
The variation of structural heterogeneity at the nanoscale can significantly impact the mechanical and electrical properties of thin film metallic glasses (TFMGs).
Xiao Han   +5 more
doaj   +1 more source

Heterogeneous structural changes correlated to local atomic order in thermal rejuvenation process of Cu-Zr metallic glass

open access: yesScience and Technology of Advanced Materials, 2019
In this study, we investigated the atomistic mechanism of structural excitation in a thermal process (thermal rejuvenation) of metallic glass. In a molecular dynamics framework, Cu-Zr metallic glass was rejuvenated by a thermal process composed of an ...
Masato Wakeda, Junji Saida
doaj   +1 more source

Glassy dynamics in thin films of polystyrene [PDF]

open access: yes, 2008
Glassy dynamics was investigated for thin films of atactic polystyrene by complex electric capacitance measurements using dielectric relaxation spectroscopy.
E. Vincent   +6 more
core   +1 more source

Effect of HIP Combined with RHT Process on Creep Damage of DZ125 Superalloy

open access: yesCailiao gongcheng, 2017
Four different processes of hot isostatic pressing (HIP) combined with rejuvenation heat treatments (RHT) were adopted to reveal the microstructural evolution of creep damaged DZ125 specimens, finally the mechanical properties were evaluated.The results ...
WANG Tian-you   +3 more
doaj   +1 more source

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