Results 151 to 160 of about 602 (238)

Nanoparticles based interventions for metal(loid) stress mitigation in plants. [PDF]

open access: yesStress Biol
Sharma A   +5 more
europepmc   +1 more source

Creep‐Induced Microstructural Evolution in an A2‐B2 Superalloy

open access: yesAdvanced Engineering Materials, EarlyView.
A 27.3Ta‐27.3Mo‐27.3Ti‐8Cr‐10Al (at.%) refractory high‐entropy alloy with precipitation‐strengthened A2‐B2 microstructure was studied by creep tests at 1030°C, which demonstrate a transition in deformation mechanisms in the range of 100–150 MPa applied stress. This is associated with changes in dislocation–precipitate interactions. Relevant deformation
Liu Yang   +10 more
wiley   +1 more source

Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A

open access: yesAdvanced Engineering Materials, EarlyView.
The influence of test temperature and test frequency on the fatigue life of EN AW‐2618A is investigated. High‐cycle fatigue tests are performed at different test temperatures and frequencies on the 1000 h/230°C overaged state. Both test parameters reduce fatigue life due to time‐dependent damage mechanisms.
Ying Han   +5 more
wiley   +1 more source

生物炭负载锌铝层状双氢氧化物吸附磷酸盐和Cr(Ⅵ)的研究

open access: yesGongye shui chuli
通过液相共沉淀法制备了芦苇秸秆生物炭负载锌铝层状双氢氧化物(ZnAl-LDHs)复合材料(ZnAl-LDHs@BC),考察了复合材料中ZnAl-LDHs质量分数、溶液pH、共存阴离子对水中磷酸盐〔Cr(Ⅵ)〕的吸附性能,并对吸附过程进行了吸附动力学和吸附等温模型模拟分析,最后考察了复合材料对磷酸盐和Cr(Ⅵ)二元废水中磷酸盐、Cr(Ⅵ)的吸附效果。结果表明,ZnAl-LDHs和生物炭之间存在协同效应,76.7% ZnAl-LDHs@BC对磷酸盐〔Cr(Ⅵ)〕表现出优异的去除效果。ZnAl-LDHs ...
俞水   +7 more
doaj  

High‐Temperature Nanoindentation of Metals: Assessing Thermal Drift, Frame Compliance, and Chemical Composition Effects on the Reported Mechanical Properties

open access: yesAdvanced Engineering Materials, EarlyView.
Do not let thermal drift and instrument artifacts deceive high‐temperature nanoindentation results. We compare classical Oliver–Pharr and automatic image recognition analyses across steels and a Ni alloy to quantify these effects. Accounting for artifacts reveals systematic softening with temperature, while Cr and Ni additions boost resistance ...
Velislava Yonkova   +2 more
wiley   +1 more source

Creep Properties and Deformation Mechanism of Additively Manufactured NiAl‐CrMo Composites

open access: yesAdvanced Engineering Materials, EarlyView.
Additively manufactured NiAl‐CrMo composites contain numerous interfaces and cell boundaries that control their creep response. At 700°C under high applied stress, creep is dominated by dislocation‐controlled power‐law mechanisms. At 800°C–900°C and lower stresses, creep is primarily diffusion‐controlled along cell boundaries.
Jan Vollhüter   +9 more
wiley   +1 more source

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