Results 91 to 100 of about 570,877 (309)
Time‐Dependent Oxidation and Scale Evolution of a Wrought Co/Ni‐Based Superalloy
Advanced Engineering Materials, EarlyView.This study shows how a new wrought Co/Ni‐based superalloy resists oxidation at 800 ∘$^\circ$C. The oxide scale changes from rough, fast‐growing spinel to a dense, protective chromia–alumina layer. Atom probe analysis reveals tiny refractory‐rich bubbles at the interface that mark the transition to long‐term, diffusion‐controlled protection ...
Cameron Crabb +6 more
wiley +1 more source
SIMULATION AND EXPERIMENTAL RESEARCH ON MILLING SURFACE TOPOGRAPHY BASED ON CUTTING VIBRATION
Jixie qiangdu, 2022 The surface topography of parts serves as a crucial role for machining quality. In order to achieve accurately prediction of the surface topography of precision milling, a surface topography simulation method based on wavelet packet analysis and ...
PAN LiMei +4 more
doaj
Dynamic cutting process modelling and its impact on the generation of surface topography and texture in nano/micro cutting [PDF]
, 2009 In the nano/micro cutting process, the surface quality is heavily dependent on all the dynamic factors, including those from the material, tooling, process parameters, servo accuracy, mechanical structural stiffness, and non-linear factors as well.
Cheng, K, Zhou, L
core +1 more source
Nail Surface Topography and Onychochronobiology [PDF]
, 2013 Nail surface changes are observed during aging and in some chronic inflammatory dermatoses. Descriptive terms are commonly used, but quantitative analytic measurements are welcome to increase sensitivity, precision, and reproducibility of observations. Bioinstrumentation, particularly optical profilometry, allows both static and repetitive assessments ...
PIERARD, Gérald, Franchimont, Claudine
openaire +2 more sources
Robust Spot Melting by 3D Spot Arrangements in Electron Beam Powder Bed Fusion
Advanced Engineering Materials, EarlyView.This work proposes an approach to replace separately melted contours for spot melting in electron beam powder fusion. Adapting the spot arrangements close to the contour combined with stacking yields a comparable surface quality without the inherent challenges of separate contours, as demonstrated, by electron optical images and roughness measurements.
Tobias Kupfer +4 more
wiley +1 more source
Tailoring Functional Properties of Ti–Ni–Cu Shape Memory Alloy Thin Films for MEMS Actuators
Advanced Engineering Materials, EarlyView.A comprehensive study of critical parameters required to develop well‐performing Ti–Ni–Cu thin film shape memory alloy microactuators is provided. Materials science and device integration aspects are integrated by addressing structural and physical relationships using complementary characterization techniques as well as a practical fabrication solution
Elaheh Akbarnejad +6 more
wiley +1 more source
Influence of Test Temperature and Test Frequency on Fatigue Life of Aluminum Alloy EN AW‐2618A
Advanced 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
Modelling of the Influence of Tool Runout on Surface Generation in Micro Milling
Chinese Journal of Mechanical Engineering, 2019 Micro milling is a flexible and economical method to fabricate micro components with three-dimensional geometry features over a wide range of engineering materials.
Wanqun Chen +3 more
doaj +1 more source
The Surface Roughness Prediction Model of Microlens Array in Slow Tool Servo Cutting
Journal of Harbin University of Science and Technology, 2020 A prediction model for the surface topography generation in the ultra precision machining of microlens arrays is established . The tool path generation is analyzed based on the cutting parameters, tool geometry parameters and geometry of microlens array.
LIN Zeqin +3 more
doaj +1 more source
Surface topography of membrane domains
Biochimica et Biophysica Acta (BBA) - Biomembranes, 2010 Elucidating origin, composition, size, and lifetime of microdomains in biological membranes remains a major issue for the understanding of cell biology. For lipid domains, the lack of a direct access to the behaviour of samples at the mesoscopic scale has constituted for long a major obstacle to their characterization, even in simple model systems made
Giocondi, Marie-Cécile +5 more
openaire +2 more sources