Press room

Physical tests

CTIF performs a certain number of physical tests.

Dilatometric analysis (true method)

Dilatomètre

The test principle is based upon studying the variation in the length of a test-piece with respect to temperature. The processing of the data is computerised.

Dilatometric analysis is used in particular to determine:

Transformation points
Expansion coefficients

Heat treatment
	Test-pieces or parts are submitted to specified heat treatment cycles, according to the mechanical or structural properties to be achieved. The ovens installed at CTIF are capable of providing heat treatment with or without inert atmospheres, in vacuum, in salt baths, in fluidised beds. CTIF is able to perform quenching in water, in oil, in forced convection, austempering.

Micro hardness testing

This test is undertaken in order to:

Characterise a metallic coating
Characterise the hardness of certain constituents
Study phenomena such as superficial decarburisation
étudier des phénomènes comme la décarburation superficielle.

Micro-hardness tester

Density measurement

Density measurement is performed by the double weight method: in air and in water.

Density measurement can be used to determine the degree of porosity (or the gas content) in materials.

Thermal analysis
	CTIF is equipped to undertake determinations by thermal analysis of the liquidus and solidus of metals and alloys. These tests are performed following an estimate according to the operating conditions.

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Physical tests

Dilatometric analysis (true method)

Heat treatment

Micro hardness testing

Density measurement

Thermal analysis