Št. zadetkov: 26
Pregledni znanstveni članek
Oznake:
vakuumska toplotna obdelava;inženirstvo površin;orodna jekla;hitrorezna jekla;lomna žilavost;
Opisan je pregled petindvajset let delovanja na področju vakuumske toplotne in kemotermične obdelave orodnih in hitroreznih jekel. Raziskovalni dosežki ob podpori drugih sodobno opremljenih laboratorijev [!] Inštitutu za kovinske materiale in tehnologije z inovativnim načinom omogočajo spremljanje i ...
Leto:
2010
Vir:
dLib.si Digitalna knjižnica Slovenije
Strokovni članek
Oznake:
ionsko nitriranje;nitriranje v pulzirajoči plazmi;razprševanje;votla katoda;
Pulse Plasma Ionitriding, one of the IONIT processes of METAPLAS IONON GmbH, is a modern and environmentally clean nitriding, which meet the material and case hardness requirements of the components. Microprocessor control permits a fully automatic nitrogen-diffusion process using ion bombardment un ...
Leto:
1995
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
vakuumska tehnika;spajkanje;jeklo;orodna jekla;
Leto:
1993
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
fracture toughness;segregations;high-strength spring steel;vacuum heat treatment;tempering diagrams;microstructure;
The results of this investigation showed that using the proposed method it was possible to draw, for the normally used range of working hardnesses, a tempering diagram (Rockwell-C hardness - fracture toughness K[sub]{Ic} - tempering temperature) for the vacuum-heat-treated high-strength spring-steel ...
Leto:
2012
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
spring steels;vacuum heat treatment;hardness;fracture toughness;microstructures;
In the work the possibilities of the vacuum heat treatment of spring steel grade 51CrV4 are presented. Charpy-V notch (CVN) impact-test values are widely used in toughness specifications for spring steels, even though the fracturing energy is not directly related to the spring design. The plain-stra ...
Leto:
2011
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
high strength steel;medium strength steel;hydrogen and temper embrittlement;fracture ductility;low strain rate tension test;
The fracture ductility of high strength steel is strongly influenced by the presence of hydrogen, although hydrogen does not significantly affect the yield strength. The deterioration of fracture ductility is particularly evident in low strain rate tension tests, but less pronounced at conventional ...
Leto:
1995
Vir:
dLib.si Digitalna knjižnica Slovenije
Pregledni znanstveni članek
Oznake:
tool steel;vacuum heat treatment;characterization;fracture toughness;
Depending on the differences in the balanced alloy composition and steel processing technology, the properties of tool and high-speed steel, like temper resistance, hot yield strength, ductility and toughness, thermal fatigue and shock resistance, as well as wear resistance can differ considerably a ...
Leto:
2013
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
stainless steel;nitriding;pulsed plasma;biomedical applications;
A use could be found for pulsed-plasma nitrided AISI 316L stainless steel in a wide range of biomedical applications, e.g. femoral and biarticular heads of joint prostheses. Forged samples of steel were pulsed-plasma nitrided at a temperature of 540°C for 24 hours to increase the hardness of the sur ...
Leto:
1995
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
Maraging steels;thermo-chemical treatment;PVD coating;wear resistance;
Low-carbon, high-alloy, precipitation hardening MARAGING steels have been developed in the early sixties of the last century as a high strength structural materials for application in aeronautical and missile engineering. Due to their excellent properties, such as: high hardenability, good toughness ...
Leto:
2010
Vir:
dLib.si Digitalna knjižnica Slovenije
Izvirni znanstveni članek
Oznake:
ledeburitic Cr-V PM steel;heat treatment;sub-zero treatment;bending strength;fracture toughness;fracture surface;
The P/M Vanadis 6 is a very popular tool steel used for different cold work applications. The specimens for the three point bending tests and fracture toughness test were austenitized at two different temperatures, quenched with or without the sub-zero treatment and then double tempered. The bending ...
Leto:
2010
Vir:
dLib.si Digitalna knjižnica Slovenije