搜索结果: 1-15 共查到“冶金工程技术 steel”相关记录37条 . 查询时间(0.107 秒)
The physical modelling of a normalising rolling of plates of S460NL1 steel grade
Plastic forming Controlled rolling Plate rolling Physical simulation
2009/12/1
Purpose: The aim of the present work was to demonstrate that, in laboratory conditions and using a physical simulator
of metallurgical processes, it us possible to reflect the actual production proc...
Research of heat transport in mould for continuous casting of steel
continuous casting of steel mould heat removal
2009/10/23
This report describes research of thermal processes in primary cooling area in terms of assessment of temperature profiles and determination of thermal flows of the mould. Even formation of casting cr...
CO2 emissions in the steel industry
metallurgy steel industry CO2 emissions direct iron ore reduction
2009/10/23
Global CO2 emissions caused by the burning of fossil fuels over the past century are presented. Taking into consideration the total world production of more than 1,3 billion tons of steel, the steel i...
Physical modeling of stresses during continuous casting of St3S steel
theory of dislocation stress relaxation numerical modeling
2009/10/23
In this work the results of physical and numerical modeling of stresses in metal during continuous casting were shown. The numerical research for St3S ingot were realized. Computer program based on Fi...
Investigation of Surface Roughness of Austenitic Manganese Steel in Hot Machining
Hot machining surface roughness austenitic manganese steel
2009/10/14
In this study, surface roughness of austenitic manganese steel was investigated in hot machining by
heating with a liquid petroleum gas flame in a lathe machine. First, the value of surface roughness...
An Energy Analysis for a Type of Liquid Carbon Steel Production in an Electric Arc Furnace
Energy analysis Electric arc furnace Carbon steel
2009/10/13
In this study,an energy analysis is done for the production of a type of liquid carbon steel in the electric arc furnace of an important alloy steel producer of Turkey, using a computer program based ...
Cladding of High Mn Steel on Low C Steel by Explosive Welding
Explosive welding Cladding High Mn steel Low C steel
2009/10/12
High Mn steel containing about 16% Mn was cladded to a low C steel by explosive welding. The
experimental results showed that the bonding interface has a wavy morphology; the welding interface has th...
Investigation of the Fracture Behavior of Steel/Steel Laminates in Crack Divider Orientation
Fracture toughness JIC testing Partially unloading compliance technique Steel laminates
2009/10/10
A study is carried out to examine the applicability of JIC testing for laminates that behave in an elasticplastic manner. Laminates made up of layers of low-C and medium-C steels are tested in crack d...
Prediction of Continuous Cooling Diagrams for the Precision Forged Tempering Steel 50CrMo4 by Means of Artificial Neural Networks
Continuous Cooling Diagrams Precision Forged Tempering Steel 50CrMo4 Artificial Neural Networks
2009/9/2
Quenching and tempering of precision forged components using their forging heat leads to reduced process energy and shortens the usual process chains. To design such a process, neither the isothermal ...
Precipitation kinetics in austenitic 18Cr-30Ni-Nb cast steel
Keywords: Ni-Cr cast steel Precipitation Niobium carbide G phase
2011/3/17
The study presents the results of investigations on the precipitation kinetics in austenitic 18%Cr-30%Ni cast steel stabilised with an addition of 1.84 wt% niobium.
Influence of coolant motion on structure of hardened steel element
Heat Treatment Phase Transformations Natural Convection Finite Element Method
2011/3/17
Presented paper is focused on volumetric hardening process using liquid low melting point metal as a coolant. Effect of convective motion of the coolant on material structure after hardening is invest...
The characteristics of two-phase 22Cr-6Ni-2Mo-1,5Cu cast steel
Stainless cast steel Cr-Ni Microstructures Distribution coefficient Mechanical properties
2011/3/17
The paper discusses the effect of the casting wall thickness on the segregation of alloying elements in two-phase (F-A) 22Cr-6Ni-2Mo-1,5Cu cast steel. The values of the distribution coefficient k0 for...
Exploitation of rare earth metals in cast steel production for power engineering
REM (rare earth metals) Modification Cast carbon steel Austenitic cast steel
2011/3/17
The paper presents results of experiments carried out on industrial melts. There has been tested the REM influence on carbon properties (0.20%C) as well as austenitic cast steel Cr-Ni 18/8+Ti type.
Significance of the sigma phase for the erosive wear process of the duplex cast steel
Innovative Foundry Technologies and Materials Duplex cast steel
2011/3/15
The work presents a possibility of increasing the tribological properties of the ferritic-austenitic cast steel (the so called duplex cast steel)of GX2CrNiMoCu25-6-3-3 grade by taking an advantage of ...
Austenite steel transformations under the influence of fatigue loading
Mechanical properties Fatigue Non-proportional loading Martensite Hardness
2011/3/15
Behavior of materials and structures in fatigue non-proportional loading conditions, characterized by the principal axes rotation during fatigue cycles, is an important issue because of its impact on ...