Results 51 to 60 of about 276,966 (307)

Effect of Micro-Segregation on Impact Toughness of 2.25Cr-1Mo Steel after Post Weld Heat Treatment

Metals, 2018
2.25Cr-1Mo steel with high strength at high temperatures and superior hydrogen resistance is widely used as power generation boiler material in high-temperature and high-pressure environments. Following the test evaluation of the ASME Boiler and Pressure
Hyesung Na, Sanghoon Lee, Chungyun Kang
doaj   +1 more source

Use of calcium carbide for artificial ripening of fruits : its application and hazards [PDF]

, 2005
A review of different articles related to artificial ripening was done. Focus was given on the hazards and applications of calcium carbide for artificial ripening, being a very common practice in Nepalese Market.
Bhattarai, Uttam Kumar, Shrestha, Kshitij   +1 more
core  

Oxide‐Free Titanium Coatings by Wire Arc Spraying in a Silane‐Doped Inert Atmosphere

Advanced Engineering Materials, EarlyView.
A silane‐doped argon atmosphere enables the production of oxide‐free titanium coatings via twin‐wire arc spraying at ambient pressure. This innovative approach eliminates residual oxygen, creating process conditions that prevent oxidation and nitride formation.
Manuel Rodriguez Diaz, Maik Szafarska, René Gustus, Kai Möhwald, Hans Jürgen Maier   +4 more
wiley   +1 more source

Thin film process forms effective electrical contacts on semiconductor crystals [PDF]

, 1967
Process makes microscopic, low-resistance electrical contacts on hexagonal n-type silicon carbide crystals used for microelectronic devices. A vacuum deposition of aluminum is etched to expose the bare silicon carbide where the electrical contacts are ...
Formigoni, N. P., Roberts, J. S.
core   +1 more source

Thermodynamic Pathways of Nonequilibrium Solidification in Wire‐Arc Additive Manufacturing Fe‐Based Multicomponent Alloy Structures

Advanced Engineering Materials, EarlyView.
Geometry‐driven thermal behavior in wire‐arc additive manufacturing (WAAM) influences microstructural evolution during nonequilibrium solidification of a chemically complex Fe–Cr–Nb–W–Mo–C nanocomposite system. By comparing different deposits configurations, distinct entropy–cooling rate correlations, segregation, and carbide evolution are revealed ...
Blanca Palacios, Anthony Gonzalez, Aleksander Aleman, Tyler Dolmetsch, Tanaji Paul, Arvind Agarwal   +5 more
wiley   +1 more source

Carbide precipitation behavior during vacuum arc remelting of GH4742 alloy

Journal of Aeronautical Materials, 2022
The different heat transfer conditions in each region of the vacuum arc remelting superalloy ingot lead to significant difference in the morphology and size distribution of carbide in the ingot.
ZHOU Yang, YU Ping, YANG Shufeng, WANG Anren, QU Jinglong, LI Jingshe, QIN Heyong   +6 more
doaj   +1 more source

Hafnium carbide formation in oxygen deficient hafnium oxide thin films

, 2016
On highly oxygen deficient thin films of hafnium oxide (hafnia, HfO$_{2-x}$) contaminated with adsorbates of carbon oxides, the formation of hafnium carbide (HfC$_x$) at the surface during vacuum annealing at temperatures as low as 600 {\deg}C is ...
Alff, L., Breuer, U., Hildebrandt, E., Komissinskiy, P., Kurian, J., Rodenbücher, C., Sharath, S. U., Szot, K., Waser, R.   +8 more
core   +1 more source

Thermomechanical Fatigue and Creep–Fatigue Interaction of Inconel 718 Additively Manufactured by Laser Beam Powder Bed Fusion

Advanced Engineering Materials, EarlyView.
Thermomechanical fatigue tests of laser beam powder bed fusion (PBF‐LB) Inconel 718 show that the additively manufactured material reaches almost the lifetimes of conventionally‐rolled material under no‐dwell conditions. Introducing dwell times at the maximum temperature markedly reduces the lifetimes due to pronounced grain boundary sliding associated
Stefan Guth, Tomáš Babinský, Jan Lars Riedel, Wen Hao Kan, Aijun Huang, Martin Heilmaier, Ivo Šulák   +6 more
wiley   +1 more source

Development of a TaN-Ce Machine Learning Potential and Its Application to Solid–Liquid Interface Simulations

Metals
This study develops a machine learning potential (MLP) based on the Moment Tensor Potential (MTP) method for the TaN-Ce system. This potential is employed to investigate the interfacial structure and wetting behavior between liquid Ce and solid TaN ...
Yunhan Zhang, Jianfeng Cai, Hongjian Chen, Xuming Lv, Bowen Huang   +4 more
doaj   +1 more source

Cause Analysis of Burst Tube of Final-Stage Superheater Tube in a Power Station Boiler

发电技术, 2019
In the long-term overheating operation condition, the boiler high temperature superheater is easy to cause the deterioration of materials and the decline of material structure and performance, and causes the pipe explosion accident.
Kuang YU, Jiaan WANG, Taoying WANG, Chen CHEN   +3 more
doaj   +1 more source