Results 41 to 50 of about 336,633 (356)

Study on the Contact Conditions of Powder Metallurgy Gear

open access: yesJixie 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  

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

open access: yesArchéopages, 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

Nitride‐Reinforced Metal Matrix Nanocomposite Powders Production by Plasma‐Assisted Thermochemical Treatment of Intermetallic Powders

open access: yesAdvanced Engineering Materials, EarlyView.
This study proposes a new methodology for producing metal matrix nanocomposites in the solid state. The process involves the plasma‐assisted thermochemical treatment of metallic alloy powders. As a proof‐of‐concept, TiN nanoparticles are synthesized directly on the surface of FeTi intermetallic powder particles, enabling the development of the ...
Deivison Daros Paim   +4 more
wiley   +1 more source

Retrospective Analysis of the Global Metal Production

open access: yesУчёт. 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

Development and design of binder systems for titanium metal injection molding: An overview [PDF]

open access: yes, 2012
Titanium metal injection molding (Ti-MIM) has been practiced since the late 1980s. Logically, the Ti-MIM practice follows the similar processes developed for the antecedent materials such as stainless steel and ceramics.
Cao, Peng   +4 more
core   +2 more sources

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

open access: yesAdvanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé   +5 more
wiley   +1 more source

First metals discovery and development the sacral component phenomenon [PDF]

open access: yes, 2015
This article is accentuated on the civilizational significance of the first industrial metals discovery, it reveals the prerequisites for the development of ores and the main stages of metals mastering connected with centuries-old experience of the ...
Biletskyi, V. S., Haiko, H.
core  

APSS - Software support for decision making in statistical process control [PDF]

open access: yes, 2018
DOI nefunkční (7.1.2019)Purpose: SPC can be defined as the problem solving process incorporating many separate decisions including selection of the control chart based on the verification of the data presumptions.
Noskievičová, Darja
core   +1 more source

Influence of Sample Preparation and Processing Procedures on the Thermal Diffusivity of MgO‐C Refractories

open access: yesAdvanced Engineering Materials, EarlyView.
The thermal diffusivity of MgO‐C refractories is highly sensitive to sample preparation and processing procedures. In this article, the effects of coking sequence, machining conditions, structural inhomogeneity, and graphite coating application on measurements using laser flash apparatus are systematically investigated.
Luyao Pan   +4 more
wiley   +1 more source

Process for HIP canning of composites [PDF]

open access: yes, 1990
A single step is relied on in the canning process for hot isostatic pressing (HIP) metallurgy composites. The composites are made from arc sprayed and plasma sprayed monotape. The HIP can is of compatible refractory metal and is sealed at high vacuum and
Juhas, John J.
core   +1 more source

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