Results 51 to 60 of about 2,405 (203)

Study on Spheroidization of Tungsten Powders by RF Plasma Processing

open access: yes, 2011
Spherical tungsten powders were synthesized by (RF) argon plasma with irregular tungsten powders in this paper. The microstructure and crystallographic phases of the synthesized powders were characterized using scanning electron microscopy (SEM) and X ...
Jun Jie Hao, Zhi Meng Guo, Yan Wei Sheng
core   +1 more source

Influence of the Initial Microstructure on the Spheroidization of SAE 52100 Bearing Steel

open access: yes, 2018
High carbon Cr-bearing SAE 52100 is widely used for bearing production. The in-service microstructure of bearing steel is tempered high C martensite, which has superior mechanical properties in severe rolling fatigue conditions. The bearings are produced
Hwang, H, De Cooman, BC
core   +1 more source

Effect of cyclic heat treatment with hot deformation on the microstructure and structural orientation of TC17 titanium alloy lamellae

open access: yes工程科学学报, 2017
The effects of cyclic heat treatment and hot deformation on the spheroidization and orientation of the TC17 titanium alloy were investigated using a light microscope (LM) and electron backscattered diffraction (EBSD).
CHEN Shao-hua   +3 more
doaj   +1 more source

Fabrication of spherical Ti–6Al–4V powder for additive manufacturing by radio frequency plasma spheroidization and deoxidation using calcium

open access: yesJournal of Materials Research and Technology, 2020
Commercial hydride-dehydride Ti–6Al–4V powder was used as raw material to fabricate high-quality spherical Ti–6Al–4V powder by radio frequency (RF) plasma spheroidization and calcium deoxidation in this work.
Jing Li   +3 more
doaj   +1 more source

Analysis on the Leakage of Boiler Heating Surface Tube of Thermal Power Plant

open access: yes发电技术, 2018
The high-temperature superheater bursting accident is one of the main factors that affect the safe operation of power plants, and causes the greatest loss.
Bo XU, Hai ZHAO, Qiang GAO
doaj   +1 more source

Aço ABNT 1045 esferoidizado: estudo da cinética de coalescimento e correlações entre microestruturas e propriedades mecânicas [PDF]

open access: yes, 2001
Dissertação (mestrado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Ciência e Engenharia de MateriaisEste trabalho teve por objetivo estudar o processo de recozimento de esferoidização de um aço SAE 1045 e ...
Rocha, Marcio Roberto da
core  

INFLUENCE OF PULSED DIVISION OF OXIDE SPHEROIDS IN A PLASMA FLOW UPON THE STRUCTURE OF COATINGS

open access: yesВесці Нацыянальнай акадэміі навук Беларусі: Серыя фізіка-тэхнічных навук, 2018
The purpose of this part of the research was to study the structural transformations at the transition of particlemicrocomposites from plasma flow into sprayed layer, taking into account grinding of spheroids. The results of investigations of the impulse
N. A. Rudenskaya, M. V. Rudenskaya
doaj   +1 more source

Influence of Microstructure and Texture on Tensile Properties of an As-Rolled Ti2AlNb-Based Alloy

open access: yesMetals
Ti2AlNb-based alloys are widely used in aerospace applications due to their excellent high-temperature mechanical properties. This study aims to investigate the texture, microstructural evolution, and phase transformation behavior of Ti2AlNb-based alloy ...
Caihong Jing   +4 more
doaj   +1 more source

The Structural and Strength Changes Resulting from Modification of Heat Treatment of High Carbon Steel

open access: yesArchives of Metallurgy and Materials, 2016
Pearlitic steels containing from some 0,8 to 0,95% C belong to the group of unalloyed steels intended for cold drawing or rolling. One of the problems discussed in literature is cracking of pearlitic steel subjected to plastic working, caused by high ...
Grygier D.   +3 more
doaj   +1 more source

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