Results 51 to 60 of about 25,819 (293)

The effect of vanadium content on hierarchical martensite structure and yield strength of petroleum casing steels

Journal of Materials Research and Technology, 2022
In the present study, the influence of V content and tempering temperature on the precipitation behavior of hierarchical martensite and yield strength of petroleum casing steels has been systematically studied.
Huaying Li, Guangqi Wen, Zhihui Cai, Yi Feng, Lifeng Ma, Akang Han, Kaihua Zhang   +6 more
doaj   +1 more source

Large‐scale bidirectional arrayed genetic screens identify OXR1 and EMC4 as modifiers of αSynuclein aggregation

FEBS Open Bio, EarlyView.
Activation of the mitochondrial protein OXR1 increases pSyn129 αSynuclein aggregation by lowering ATP levels and altering mitochondrial membrane potential, particularly in response to MSA‐derived fibrils. In contrast, ablation of the ER protein EMC4 enhances autophagic flux and lysosomal clearance, broadly reducing α‐synuclein aggregates.
Sandesh Neupane, Lea Nikolić, Lorenzo Maraio, Thomas Goiran, Nathan Karpilovsky, Stefano Sellitto, Vangelis Bouris, Jiang‐An Yin, Ronald Melki, Edward A Fon, Adriano Aguzzi, Elena De Cecco   +11 more
wiley   +1 more source

Extreme Precipitation Strengthening in Ion-Implanted Nickel [PDF]

, 1999
Precipitation strengthening of nickel was investigated using ion-implantation alloying and nanoindentation testing for particle separations in the nanometer range and volume fractions extending above 10O/O.
Follstaedt, D. M., J. A. Knapp, G. A. Petersen, D. M. Follstaedt, Knapp, J. A., Petersen, G. A., Myers, S. M., S. M. Myers   +7 more
core   +1 more source

Modeling of Microsegregation and Homogenization of 6xxx Al-Alloys Including Precipitation and Strengthening During Homogenization Cooling [PDF]

, 2019
Control of the homogenization process is important in obtaining high extrudability and desirable properties in 6xxx aluminum alloys. Three consecutive steps of the process chain were modeled.
Sarafoglou, Panagiota I., Gregory N. Haidemenopoulos, Fanikos, Ioannis A., Panagiota I. Sarafoglou, Aristeidakis, John S., John S. Aristeidakis, Haidemenopoulos, Gregory N., Serafeim, Alexandros, Ioannis A. Fanikos, Alexandros Serafeim   +9 more
core   +3 more sources

Precipitation strengthening mechanisms in Cu/Ni alloyed steel

Cailiao gongcheng
The microstructural evolution and yield strength changes of medium-Mn steels with Cu， Ni， and Cu/Ni composite additions after aging at 500 ℃ are systematically compared using electron backscatter diffraction （EBSD）， transmission electron microscopy （TEM）
LAI Weiqiang, DING Fanglin, HU Bin, LUO Haiwen   +3 more
doaj   +1 more source

A great enhancement of both strength and plasticity in a dual-phase high-entropy alloy by multi-effects of high carbon addition

Materials & Design, 2023
High-entropy alloys (HEAs) have become an interesting research area for the novel alloying design paradigm. Interstitial carbon has usually been introduced to enhance mechanical properties of HEAs. To achieve addition of high carbon, this work designed a
Conghui Hu, Jianlei Zhang, Yunhu Zhang, Changjiang Song, Qijie Zhai   +4 more
doaj   +1 more source

Adenosine triphosphate as a modulator of protein interactions and stability

FEBS Open Bio, EarlyView.
ATP is best known as the cell's energy currency, but it also shapes how proteins fold, interact, aggregate and form biomolecular condensates. This review explains the emerging physical principles behind these effects, including weak binding to charged protein regions, magnesium‐dependent behaviour and concentration‐dependent control of protein ...
Shuyuan Tan, Robin Curtis
wiley   +1 more source

Prediction of precipitation kinetics and strengthening in FeMnAlC lightweight steels

Journal of Materials Research and Technology, 2021
Fe–Al–Mn–C steels have superior mechanical properties, such as high yield and tensile strengths and low density, which make them suitable for applications in the automotive and defense industries.
Jaeeun Lee, Hwangsun Kim, Kyeongjae Jeong, Seong-Jun Park, Joonoh Moon, Sung-gyu Kang, Heung Nam Han   +6 more
doaj   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Strengthening Mechanisms in CoCrFeNiX_0.4 (Al, Nb, Ta) High Entropy Alloys Fabricated by Powder Plasma Arc Additive Manufacturing

Nanomaterials, 2021
In high entropy alloys (HEAs), the addition of large-size atoms results in lattice distortion and further leads to solid solution strengthening or precipitation strengthening.
Yupeng Zhang, Qingkai Shen, Xizhang Chen, Subramanian Jayalakshmi, Ramachandra Arvind Singh, Sergey Konovalov, Vladislav B. Deev, Evgeny S. Prusov   +7 more
doaj   +1 more source