Results 11 to 20 of about 177,235 (109)

The Influence of Vibro-Assisted Abrasive Processing on the Surface Roughness and Sub-Surface Microstructure of Inconel 939 Specimen Made by LPBF

open access: yesMaterials, 2023
This paper presents the research results on the influence of vibration abrasive machining parameters on the surface layer integrity of elements made by LPBF technology from Inconel 939.
J. Radziejewska   +3 more
semanticscholar   +1 more source

On as-built microstructure and necessity of solution treatment in additively manufactured Inconel 939

open access: yesPowder Metallurgy, 2022
Increased adoption of additively manufactured superalloys has led to the consideration of revised heat treatment approaches for these materials.
A. S. Shaikh   +3 more
semanticscholar   +1 more source

Effect of Preheating on the Residual Stress and Material Properties of Inconel 939 Processed by Laser Powder Bed Fusion

open access: yesMaterials, 2022
One of the main limitations of laser powder bed fusion technology is the residual stress (RS) introduced into the material by the local heating of the laser beam.
M. Malý   +5 more
semanticscholar   +1 more source

Effect of Part Thickness and Build Angle on the Microstructure, Surface Roughness, and Mechanical Properties of Additively Manufactured IN-939

open access: yesMetallurgical and Materials Transactions. A, 2022
Powder bed fusion-laser beam of metals (PBF-LB/M) has attracted significant interest due to the possibility of producing dedicated design features like thin-walled structures, even though their mechanical response and microstructure are not well ...
A. Fardan   +3 more
semanticscholar   +1 more source

Design of crack-free laser additive manufactured Inconel 939 alloy driven by computational thermodynamics method

open access: yesMRS Communications, 2022
This paper examined the effect of Si addition on the cracking resistance of Inconel 939 alloy after laser additive manufacturing (AM) process. With the help of CALculation of PHAse Diagrams (CALPHAD) software Thermo-Calc, the amounts of specific elements
C. Zeng, H. Ding, U. Bhandari, S. M. Guo
semanticscholar   +1 more source

Effects of miR-939 and miR-376A on ulcerative colitis using a decoy strategy to inhibit NF-κB and NFAT expression

open access: yesEuropean Journal of Histochemistry, 2022
The aim of this study was to explore the effects of miR-939 and miR-376A on the pathogenesis of ulcerative colitis (UC) by using a decoy strategy to regulate the expression of nuclear transcription factor kappa B (NF- κB) and nuclear factor of activated ...
Yong-da Lin   +6 more
semanticscholar   +1 more source

Edge Jump Distance Graphs [PDF]

open access: yes, 2015
The concept of edge jump between graphs and distance between graphs was introduced by Gary Chartrand et al. in [5]. A graph H is obtained from a graph G by an edge jump if G contains four distinct vertices u, v, w, and x such that uv belongs to  E(G)
Huilgol, Medha Itagi   +1 more
core   +1 more source

Sawi Transform Based Homotopy Perturbation Method for Solving Shallow Water Wave Equations in Fuzzy Environment

open access: yesMathematics, 2022
In this manuscript, a new hybrid technique viz Sawi transform-based homotopy perturbation method is implemented to solve one-dimensional shallow water wave equations.
Mrutyunjaya Sahoo   +1 more
doaj   +1 more source

Acknowledgment to Reviewers of Mathematics in 2020

open access: yesMathematics, 2021
Peer review is the driving force of journal development, and reviewers are gatekeepers who ensure that Mathematics maintains its standards for the high quality of its published papers [...]
Mathematics Editorial Office
doaj   +1 more source

Ordering Awad–Varma Entropy and Applications to Some Stochastic Models

open access: yesMathematics, 2021
We consider a generalization of Awad–Shannon entropy, namely Awad–Varma entropy, introduce a stochastic order on Awad–Varma residual entropy and study some properties of this order, like closure, reversed closure and preservation in some stochastic ...
Răzvan-Cornel Sfetcu   +2 more
doaj   +1 more source

Home - About - Disclaimer - Privacy