Analysis and testing

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The labs of CRITT MATÉRIAUX INNOVATION offer you all means need to determine chemical composition, mechanical and tribological properties, corrosion endurance, on the core or surface of your parts or samples

Wearing and rubbing testing Mechanical testing Ageing testing Chemical analysis

Analysis and testing

The labs of CRITT MATÉRIAUX INNOVATION offer you all means need to determine chemical composition, mechanical and tribological properties, corrosion endurance, on the core or surface of your parts or samples

Wearing and rubbing testing Mechanical testing Ageing testing Chemical analysis

Chemical analysis

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analysises

Chemical analysis and micro analysis lab of CRITT MATÉRIAUX INNOVATION offers very complete skills and facilities for chemical element dosing, core or on surface, for all kind of materials or samples.

It is equipped with the following techniques

Optical emission spectrometry (ICP-OES) Spark Optical Emission Spectrometry Glow discharge spectroscopy (GD-OES)

X-ray fluorescence spectrometry

Infrared spectrometry

Dosing of gas content by reductive fusion in metals (hydrogen, oxygen, nitrogen)

Dosing of carbon or sulphur by combustion in metals

Gas chromatography

Dosing of total organic carbon (TOC)

X-ray diffraction

Scanning electron microscope coupled to an EDS probe (Energy Dispersive X-ray Spectrometry)

More informations

Some examples

A large part of the chemical analysises carried out by CRITT MATÉRIAUX INNOVATION can be performed under NF EN ISO/IEC 17025 (COFRAC) or NADCAP accreditation, or AIRBUS or SAFRAN qualification. See detail here

Dosing of elements present in a metallic sample or part and checking the conformity to a standard or a specification. Our facilities can carry out analysis from a very few quantity of material.

Research of the grade of a metallic sample of unknow composition.

Dosing hydrogen in titanium

Cleanless checking

Determination of the chemical composition profile of a coating, according with the thickness

Mapping of chemical elements on surface or core of a sample, by EDS probe.

Research, by X-ray diffraction, of phases present in a sample of hydroxyapatite.

Mechanical testing

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mechanical tests

The mechanical testing lab of CRITT MATÉRIAUX INNOVATION have a pool of machines which can perform a large tests range, according with existing standards or protocol adapted for your request :

Static or dynamic tests:

Traction and compression (from 1,25 to 240 000 N)

Torsion (from 0,1 to 100 N.M°

Axial/torsion

Shearing

Flexion by points

Screwing tests (until +/- 16 turns)

Rotative flexion tests

Impact bending

CRITT MATERIALS INNOVATION can design and carry out specific bed tests adapted for customised parts or tests protocol. Some tests can be performed in a specific environment (temperature, liquid medium…). Please, ask us for more precisions.

More informations

Some examples

A large part of the mechanical tests carried out by CRITT MATÉRIAUX INNOVATION can be performed under NF EN ISO/IEC 17025 (COFRAC) or NADCAP accreditation, or AIRBUS or SAFRAN qualification. See detail here.

Uni- axial tensile test on standard sample

Uni- axial fatigue test on manutention hooks

Fatigue tests on corporectomy model

Flexion by point test on plate

Auto tapping performance

Disassembling test by torsion or pull-out

Impaction test on intervertebral cage

Wearing and rubbing tests

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tests

Facilities of the CRITT MATÉRIAUX INNOVATION tribology platform, allow the evaluation of wearing and rubbing properties of materials and parts for several fields of activity. We are equipped with :

Two scratch-tests: instrumented scratch test for the analysis of the strength of thin films and their level of adhesion to the substrate, at micro and nanometric scales

A Taber® abrasimeter : strenght test for surfaces abrasion (standards ISO 7784-2, ASTM D 4060, ASTM F 1978)

Pin-disc tribometers: for measurement of rubbing coefficient and wear of materials in various mediums:

Standard, pin or ball-disc, from 1 to 20 N

Hight temperature, until 800°C, from 1 to 20 N

High loads with multi directional movements, until 500 N (standard ASTM F 732)

Wear simulators for joint implants: hip, knee… (standard ISO 14242 & 14243)

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Certification

With these equipments, associated with its numerous facilities for surface characterization, CRITT MATÉRIAUX INNOVATION propose to support your projects for new materials development, surface treatment, comparative validation, close realistic tests conditions

A part of these tests can perform under ISO/CEI 17025 (COFRAC) accreditation. Find detail here

Ageing tests

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tests

CRITT MATÉRIAUX INNOVATION offers you a large range of ageing tests adapted to your requiments:

Corrosion resistance tests in neutral salt spray

Tests under climatic conditions

Tests under wet conditions

ECC1 tests (RENAULT D17 2028 method)

Accelerated ageing under pure oxygen

More informations

Some examples

A part of these tests can perform under RENAULT or AIRBUS qualification. See details here

Ageing on UHMWPE samples, followed by physico-chemical tests, targeted to determine their stability to oxidation (ISO 5834-3 or ASTM F 2003-2 standards)

Determination of the resistance of a coating subjected to salt spray -> wetness -> drying cycles

Resistance test for the passivation layer of a stainless steel.

Additional informations

Examples of applications

Evaluation of a Surface Mechanical Attrition Treatment (SMAT) on the scratch resistance of CoCrMo (CCM) material and the wear of a CCM/UHMWPE couple, used in hip prostheses :

Conclusion:

Decrease of scratch’s density and deepness on the metallic material as well as the mass loss on the UHMWPE antagonist.

Focus on some equipments

Micro scratch test

Analysis of surfaces scratch resistance

Thin films adherence

Abrasive wearing by multiple passages of the indentor

Determination, under load and residual, of indentor penetration deepness

Conventional pin-disc tribometer

Accorded with ASTM G99 standard

Rubbing coefficient measurement

Wearing test under ambient air/ liquid medium/ lubricated

Wear evaluation by weighing, grooves areas, SEM observations…

High temperature tribometer

Temperature until 800°C

Load from 1 to 20 N

Speed max 500 turn/minute

Continues measurement of rubbing coefficient

Rotative or rotative/alternative mode

Possibility of tests in fretting

Can highlight high temperature rubbing’s specific phenomenas, as impact of oxide layers witch are forming on surface, their lubricating properties and disaggregation cinetic.

High loads tribometer

The 3 stations tribometer, multi directional, apply higher loads than conventional pin-disc devices.

3 simultaneous stations, with independent load

Rubbing coefficient measurement

Multi directional trajectory: displacement as two directions (x, y)

Triangular trajectory…

High loads, until 500 N

Accorded with ASTM F-732-00 standard, annexes 1 and 2, « Wear testing of polymeric materials used in total joint prostheses n »

It can sollicite polymeric materials in a more realistic way, generating shear constraints. Moreover, the tested pin’s contact area can be increased maintaining realistic contact pressures, therefore the sample’s surface topography influence is taken in account.

Contact:
Clémence Demangel – c.demangel@critt-mi.com

9 rue Claude Chrétien, Campus Sup Ardenne, Bâtiment D, 08000 Charleville-Mézières | 26 Rue Lavoisier, Pôle Technologique de Champagne, Bâtiment A, 52800 Nogent

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