Department of Materials and Metallurgy (DMM)

The Research Infrastructure Centre of the Faculty of Natural Sciences and Engineering (NTF) offers research equipment of NTF that is also located at the Department of Materials and Metallurgy.

Department of
Materials and Metallurgy

Aškerčeva cesta 12
Lepi pot 11
SI-1000 Ljubljana
Tel: +386 1 470 45 00
Fax: +386 1 470 45 60
E-pošta: info@ntf.uni-lj.si

Equipment

ELOTEST M2 V3+

(Rohmann GmbH, Germany)

Responsible person:

Purpose of equipment:

  • NDT eddy current discovers changes in materials such as: cracks, cavities and other errors

Access of equipment:

  • The equipment is available by agreement with the operator or with the head of the laboratory.

Price of equipment use:

  • for experienced users: 50 €/hour
  • for users with an operator: 70 €/hour
Simple thermal analysis+

Responsible person:

Purpose of equipment:

  • Cooling of the metal and alloy was monitored by means of an ETA (simple thermal analysis). Curing is accompanied by the release of heat, which is reflected in the cooling curve as a change in cooling rate. The characteristic points indicate the formation of individual phases of the microstructure. The analysis is suitable for determining the state of the melt in the manufacture and laboratories.
Application of industrial measurements+


Responsible person:

Purpose of equipment:

  • We perform measurements of technological parameters of technologies for transformation of metals (rolling, forging, extrusion, etc.).


Industrijske_meritve

Calorimeter 200 C+

(IKA, Germany)

Responsible person:

Purpose of equipment:

  • Determining gross calorific values of solid and liquid samples. Validation according to standards DIN 51900,ISO 1928, ASTM D240, ASTM D4809, ASTM D5865, ASTM D1989, ASTM D5468, ASTM E711.

Access of equipment:

  • The equipment is available by agreement with the operator or with the head of the laboratory. Contact person: Marija Ribič Berdajs (marija.ribic@omm.ntf.uni-lj.si)

Price of equipment use:

  • for experienced users: 48.75 €/hour
  • for users with an operator: 58.94 €/hour
Control of microstructure+

Control of microstructure by monitoring the curing of a newly developed in situ dilatometric and termic analysis


Kontrola_mikrostrukture

Measurements of contact temperatures+

Responsible person:

  • assoc. prof. dr. Milan Terčelj
  • Chair of Materials Forming
  • Tel: +386 1 4704 506, +386 1 2000 434, +386 1 4250 316
  • E-mail: milan.tercelj@omm.ntf.uni-lj.si

Purpose of equipment:

  • This method is used to measure the temperature of hot forming tools and other machine parts. Enables temperature measurements up to 00:15 mm from the surface with high response thermocouples.
Device for preparing of samples for TEM analysis – Gatan pips 609+

Responsible person:

Purpose of equipment:

  • This device is intended for the preparation of samples for transmission electron microscopy (TEM) and the analysis and interpretation of TEM images and diffraction roentgenograms.
Device for rapid solidification processes+

Responsible person:

Purpose of equipment:

  • The device is capable of producing thin (below 100μm) and narrow (2-3 mm) strips of different metals and alloys from the melt by cooling speeds 105 to 106 K / s. In this way, the hardened alloy has a chemical composition, microstructure and properties that differ significantly from those conventionally made from metallic materials. Some materials are also made for research institutions from abroad (sources of energy, materials, shape memory).


hitro_strjevanje1

hitro_strjevanje2 


Nevron networks for analysis of impacts and prediction processes+

Responsible person:

  • assoc. prof. dr. Milan Terčelj
  • Chair of Materials Forming
  • Tel: +386 1 4704 506, +386 1 2000 434, +386 1 4250 316
  • E-mail: milan.tercelj@omm.ntf.uni-lj.si

Purpose of equipment:

  • Effective mainly in cases where the effects of parameters on a certain grandeur very complex (complex), but there is enough database. Has successfully been used to analyse the effects of chemical composition on surface cracking during the transformation of materials, optimising the mechanical properties of materials, forecasting processes, wear, etc.
Numerical analysis of materials and processes+


Responsible person:

Purpose of equipment:

  • Computer predictions of the stress-deformation temperature and electromagnetic fields using finite element method.


numericne_analize

Microscope Olympus BX61 for characterization of macro and microstructures+


Responsible person:

Purpose of equipment:

  • In this laboratory, we can characterise macro and microstructures, mainly of castings and other parts. The laboratory is equipped with a powerful system for image analysis (Materials research lab, producer Analysis). The system allows for macroscopic investigation of casting defects like: shrinkage and gas porosity, cracks, inclusions, etc., as well as microscopic investigations and analyses in light and dark field, in polarised light and with interferential contrast. The laboratory is equipped with the following Olympus instruments: Instrument for macro images, Stereo microscope, Metallographic microscope.

Access of equipment:

Price of equipment use:

  • 100 €/hour


Olympus_mikroskop_bx61

Computer programme Thermo-calc software+

Responsible person:

  • assoc. prof. dr. Jožef Medved
  • Chair for Metallurgical Processing Technique
  • Tel: +386 1 2000 423, +386 1 2000 448
  • E-mail: jozef.medved@omm.ntf.uni-lj.si

Purpose of equipment:

  • Thermo-calc software is meant for calculation of phase diagrams and thermodynamic properties with different databases for all types of metal materials and alloys.

Access of equipment:

  • Chair for Metallurgical Processing Technique, Lepi pot 11, office 5B, 1000 Ljubljana

Price of equipment use:

  • for trained users: 50 €/hour
  • additional costs for operator from research organisation (if the user is not properly trained) : 52.52 €/hour


thermo_calc

Scanning electron microscope with EDS, JSM 5610+


Responsible person:

Purpose of equipment:

  • Surface analysis,
  • Morphology,
  • Phase and chemical composition (EDS)
  • SEM JEOL-5610 is intended for the surface analysis of solids in vacuo 10-5do 10-6 mbar. It is equipped with an energy dispersive X-ray spectrometer that allows for a qualitative and quantitative chemical microanalysis, a sensor for back scattered electrons (enable phase analysis) and a sensor for secondary electrons (indicates a relief surface and thereby detects the microstructure of the analysed material). It is used in the development and testing of materials, supporting technologies, analysis of injuries and forensic research.

Access of equipment:

  • The equipment is available by agreement with the operator or with the head of the laboratory.

Price of equipment use:

  • For experienced users: 128,70 €/hour
  • For users with an operator: 138.98 €/hour


SEM_5610_1

SEM_5610_2

SEM_5610_3


Simulator of thermomechanical metallurgical states GLEEBLE 1500D+


(Dynamic Systems Inc., USA)

Responsible person:

Purpose of equipment:

  • Simulator of thermomechanical metallurgical states enables the following investigations of materials: tensile test, compression test, flow curves, activation energy, microstructure development during hot forming, high temperature fatigue testing, solidification simulation, welding simulation, heat treatment, multistage forming test, wear testing.

Access of equipment:

  • The equipment is available upon agreement with the responsible person of the equipment. Access time depends on equipment use. It’s located at Lepi pot 11-13, Ljubljana.

Price of equipment use:

  • skilled user 53.22 €/hour


termomehanski_simulator1

termomehanski_simulator2


Simultaneous thermal analysis, STA 449 Jupiter+


(Netzsch, Germany)

Responsible person:

  • assoc. prof. dr. Jožef Medved
  • Chair for Metallurgical Processing Technique
  • Tel: +386 1 2000 423, +386 1 2000 448
  • E-mail: jozef.medved@omm.ntf.uni-lj.si

Purpose of equipment:

  • Simultaneous thermal analysis (STA) is a method of thermal analysis that makes it possible to investigate a variety of samples by two or three thermal-analytical methods. Usually those are thermogravimetry (TG), differential thermal analysis (DTA) and differential scanning calorimetry (DSC). Simultaneously, the investigation can be done on processes based on energy difference (absorbing and relaxing heat under reaction) and investigation of mass change (oxidation, degradation, etc.). STA measurement is a complex measurement that is recommended for determining the physical – chemical properties of materials, especially new ones. Simultaneously, the modelling of technological processes can be done. STA analysis makes it possible to determine characteristic temperatures (melting point, boiling point, allotropic modifications, etc.), thermal effect (melting / solidification enthalpy, combustion heat, etc.), specific heat Cp, loss or increment of mass, etc.

Access of equipment:

  • Chair for Metallurgical Processing Technique, Lepi pot 11, laboratory 5A, 1000 Ljubljana

Price of equipment use:

  • for trained user : 65 €/hour
  • additional costs of operator from the research organisation (if the user is not properly trained): 67.95 €/hour


Simultana_termicna_analiza

Cone probe for determination of solidification and microstructure development of castings+


Responsible person:

Purpose of equipment:

  • In order to monitor coagulation and formation of microstructures, a conical measuring cell for “in situ” simple thermal analysis has been developed. The measurement cell is made of grey cast iron with lamellar graphite. It is cone-shaped and enables the production of castings in which it is possible to keep track of coagulation by thermal analysis as a function of continuously changing the cooling rate.


Spremljanje_strjevanja_in_mikrostrukture_ulitka_z_novo

Light microscope Zeiss...+

Light microscope Zeiss, Axio Imager A1m, digital camera AxioCam ICc 3 and software AxioVision

Responsible person:

Purpose of equipment:

  • Light microscope enables observation of the microstructure of properly prepared materialographic samples of different materials. The microscope enables imaging of samples using different examination modes like bright field, dark field, differential interference contrast and polarised light. The light microscope is equipped with a digital camera AxioCam ICc 3 (3.3 million pixels) and AxioVision software for image analysis (grain size, phase fractions, etc.).

Price of equipment use:

  • Price (operator): 60.00 €/hour
  • Price (without operator): 48.54 €/hour
Optical microscopes Reichert+

Responsible person:

Purpose of equipment:

  • Optical microscopes enable research and characterisation of metal surface materials.
Universal tensile testing machine – Zwick z250+


Responsible person:

Purpose of equipment:

  • The tensile machine, with a work area of up to 250 kN, in addition to the standard equipment is supplemented by a stove that provides testing at a hot temperature of up to 700 °C. Triple temperature control in the oven allows the execution of complex measurements such as the determination of Superplastic properties of metallic materials.


zwick2

zwick1


Vacuum induction casting furnace+


Responsible person:

  • prof. dr. Primož Mrvar
  • Chair of foundry
  • Tel: +386 1 2000 447
  • E-mail: primoz.mrvar@omm.ntf.uni-lj.si
  • assoc. prof. dr. Jožef Medved
  • Chair of Metallurgical Processing Technique
  • Tel: +386 1 2000 423
  • E-mail: jozef.medved@omm.ntf.uni-lj.si

Basic characteristics:

  • All processes including preparation, melting, purring and cooling are made in a vacuum or in a controlled atmosphere.
  • Specifications:
    • Power: max 45 kW
    • Frequency: 1 – 5 kHz
    • Vacuum: 10 – 3 mbar
    • Volume: 2.5 L
    • Max. temperature: 2000 °C
  • The furnace is suitable for making and elevation and casting of different materials.
  • With the new experimental computer regulated furnace, we can perform:
    • Gravity casting in permanent moulds,
    • Gravity casting in unique forms made from different fireproof materials,
    • Centrifugal casting in shells (investment casting) and permanent moulds.
    • The furnace can be used for directional solidification.

Access of equipment:

Price of equipment use:

  • 43 €/hour


vakumska_pec_1

vakumska_pec_2


High temperature determination of wear resistance+


Responsible person:

  • assoc. prof. dr. Milan Terčelj
  • Chair of Materials Forming
  • Tel: +386 1 4704 506, +386 1 2000 434, +386 1 4250 316
  • E-mail: milan.tercelj@omm.ntf.uni-lj.si

Devices for testing wear:

  • Long sliding lengths (tribological pair of hard test / Soft antibody)
    Short sliding lengths (forging).


Visokotemperaturno_b

Visokotemperaturno_a


Scanning electron microscope Jeol JSM-7600F+

Responsible person:

Purpose of equipment:

  • Scanning electron microscope (SEM) enables imaging and microanalysis of different materials. Lateral resolution when using SE is 1.0 nm at 15kV. The microscope enables magnifications from 25 to 1,000,000 times. It can work with acceleration voltages from 0.1 to 30 kV. The scanning electron microscope is equipped with several different detectors:
    • SE, LEI Detector (secondary electrons)
    • BE Detector (backscattered electrons)
    • INCA Oxford 350 EDS SDD (EDS micro-chemical analysis)
    • INCA Wave 500 spectrometer (WDS micro-chemical analysis)
    • XENOS XeDraw 2 (e-lithography)
    • EBSD, Channel 5, Oxford Instruments (system for determination of crystallographic orientation)
    • r-filter for combining SE in BE signals

Price of work:

  • 135.30 €/hour

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