Results 21 to 30 of about 137,886 (268)

Voie de grand parcours et dessertes locales entre Orléans et Paris. La place du carrefour dans l’espace environnant

Archéopages, 2021
Data comparison from the excavation of a segment of the Orléans-Paris trunk road at Massy (Essonne) with that from the surrounding archaeological operations revealed the presence of a local network crossroads that would have functioned from the Gallic to
Jean Bruant
doaj   +1 more source

New Developments in the Field of Production and Application of Multi‐Material Wire Arc Additive Manufacturing Components: A Review

Advanced Engineering Materials, EarlyView.
The utilization of direct energy deposition (DED)‐arc additive manufacturing processes in industrial applications is increasing, and these processes have the potential for multi‐material applications. This work provides a overview of the state of research in DED‐arc made functional graded structures, to establish a link to potential industrial ...
Kai Treutler, Volker Wesling
wiley   +1 more source

Retrospective Analysis of the Global Metal Production

Учёт. Анализ. Аудит
Metallurgy is the cornerstone of the global economy. The distribution of key metal production by country reveals the global balance of productive forces.
M. N. Tolmachev
doaj   +1 more source

Mitigation of Cracks in High‐Performance Nickel‐Based Superalloys in Powder Bed Fusion Laser Beam of Metals Using a Metal Matrix Composite Approach

Advanced Engineering Materials, EarlyView.
High‐performance nickel‐based superalloys are often not processible in additive manufacturing (AM) due to hot cracking. The findings in this manuscript propose an efficient method to mitigate cracking and enhance mechanical properties of these alloys by producing a metal matrix composite, contributing to the material and process perspective of the AM ...
Klaus Büßenschütt, Maël Pontoreau, Christian Haase, Johannes‐Henrich Schleifenbaum   +3 more
wiley   +1 more source

A Study on Non-Carbon Steelmaking at High Temperature

Teshugang, 2011
As compared with carbon metallurgy, a concept of non-carbon metallurgy to combine solar energy, wind power and metallurgy technology is advanced to expound the idea of non-carbon metallurgy with photo-wind complement each other.
Hou Mingshan, Fan Xinyou, Liu Chao, Dong Hongbo, Li Shiqi   +4 more
doaj  

Investigation of Iron‐Aluminide‐Like Phase Composition in Complex Concentrated Fe32Cu12Ni11Ti16Al29 Alloy

Advanced Engineering Materials, EarlyView.
This work reveals the phase composition and quantitative morphology analysis of precipitation‐hardened Fe32Cu12Ni11Ti16Al29 complex‐concentrated alloy. The precipitates are shown to have a high coherency. Morphology transition between sphere, cuboidal, and elongated morphology is observed. Finally, the overaging behavior is captured using microhardness.
Rostyslav Nizinkovskyi, Lukas Hanisch, Georg Hasemann, Puspendu Sahu, Manja Krüger   +4 more
wiley   +1 more source

Study on the Contact Conditions of Powder Metallurgy Gear

Jixie chuandong, 2017
With the development of powder metallurgy technology in recent years,the applications of powder metallurgy gear becoming more and more widely. But the porosity structure of material may results in larger gear tooth bending deformation of powder ...
Fang Cheng, Li Xinmin
doaj  

Laser Metal Deposited Ti4822 Hollow Pipe: Experimental and Computational Modelling Study

Advanced Engineering Materials, EarlyView.
Laser metal deposition (LMD) of a crack‐free built Ti4822 alloys is challenging. This article reports outstanding characteristics of a hollow pipe that is built with LMD technology when a predicted, nontransformation substrate temperature of 800 °C is used.
Sadiq A. Raji, Monnamme Tlotleng, Samuel Skhosane, Lehlogonolo R. Kanyane, Abimbola PI Popoola, Sisa L. Pityana   +5 more
wiley   +1 more source

Using reference materials of blast furnace slag, steelmaking slag, converter slag and fused fluxes when developing a procedure for analysis of slag-forming mixtures using inductively coupled plasma atomic emission spectrometry

Стандартные образцы, 2018
Introduction. Slag-forming mixtures play an important role in obtaining metal without non-metallic inclusions. Required properties of slag-forming mixtures (SFMs) directly depend on their chemical composition, that is why control of individual component ...
I. I. Chernikova, T. V. Kostrikina, K. V. Tyumneva, T. N. Ermolaeva   +3 more
doaj   +1 more source

Electrospark‐Deposited AlCrFeCoNi High‐Entropy Alloy Coatings on Steel: Microstructure Evolution, Mechanical Properties, and Corrosion Response

Advanced Engineering Materials, EarlyView.
AlCrFeCoNi high entropy alloy coating is applied on steel using electrospark deposition. The microstructure evolution and phase transformation of the as‐deposited and heat‐treated coatings is characterized and discussed. Reduced microhardness and yield strength are measured after heat treatment.
Jihui Yan, Roozbeh Abbasi, Xiaoye Zhao, Peng Peng, Norman Yunhong Zhou   +4 more
wiley   +1 more source