Results 41 to 50 of about 45,738 (169)

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

open access: yes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   +3 more
doaj   +1 more source

On the crystallization of austenitic carbide eutectic of chromium cast iron

open access: yesЛитьë и металлургия
Crystallization of austenitic carbide eutectic of chromium cast iron is a nanostructural process in which iron, graphite and chromium nanocrystals play a major role.
E. I. Marukovich   +2 more
doaj   +1 more source

Optimization of process parameters of strong spinning of GCr15 bearing steel based on carbide control

open access: yesXibei Gongye Daxue Xuebao
In order to realize the uniform and fine carbide control in GCr15 bearing steel with the strong spinning process, the main process parameters of the GCr15 bearing steel were first optimized with the response surface method and the finite element method ...
DAI Xu, WANG Jianguo, LIU Dong
doaj   +1 more source

Precipitation and Evolution Behavior of Carbide During Heat Treatments of GCr15 Bearing Steel

open access: yesCailiao gongcheng, 2017
The evolution behavior of carbides in GCr15 bearing steels after spheroidization annealing, austenitization quenching and low temperature tempering was investigated by the method of quantitative metallography.
MA Chao, LUO Hai-wen
doaj   +1 more source

A Study on the Carbide Grain in the Cemented Titanium Carbides

open access: yesJournal of the Ceramic Association, Japan, 1962
The shape and the size of carbide grains in nickel bonded titanium carbides were studied by metallographical methods to confirm the influences of sintering atmosphere, temperature, and of the amount of metal binder on the nature of carbide grains.The carbide and nickel powders were mixed and ball-milled with methyl alcohol for 25 hours.
NIKI, Eiji   +2 more
openaire   +1 more source

Effect of solid solution temperature and aging time on microstructure and mechanical properties of Inconel 617 superalloy

open access: yesCailiao gongcheng
The effects of solid solution temperature and aging time on the microstructure and mechanical properties of Inconel 617 superalloy are studied by using optical microscope, scanning electron microscope, and transmission electron microscope.
WANG Qingpeng   +6 more
doaj   +1 more source

Abrasive wear of high chromium Fe-Cr-C hardfacing alloys

open access: yesResearch in Agricultural Engineering, 2008
Weld deposits are one of the most used economical ways of the wear resistance increase. The study compares the characteristics of the overlay material welded-on and the abrasive wear resistance.
R. Chotěborský   +4 more
doaj   +1 more source

Thermoelectric Characteristics of Carbides

open access: yes, 1972
Thermoelectric characteristics from 0°C to 1000°C are determined for several grades of carbide versus Pt. The characteristic of Pt versus C45N-steel is also obtained. From these, the thermoelectric characteristics of the carbides versus C45N-steel can be derived.
Bus, Chr.   +3 more
openaire   +2 more sources

Abrasive wear resistance of a quenched and sub-zero treated high-chromium white cast iron

open access: yesMetalurgija, 2017
The study reported in this paper concerned development of such microstructure of high-chromium (24 % Cr) cast iron which could secure high abrasive wear resistance of die inserts used to fabricate stampings from refractory materials. It was found that by
A. W. Orłowicz   +5 more
doaj  

Analisis Kuat Tekan Beton Mutu Tinggi Dengan Bahan Tambah Superplastisizer Dan Limbah Las Karbit

open access: yesRekayasa Sipil, 2018
This research will discuss about the compressive strength of concrete by using superplastisizer as an addictive substance and waste of carbide weld as the admixture material of cement replacement.
Hakas Prayuda, As’at Pujianto
doaj   +1 more source

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