Instrumented indentation · non-destructively on the component

PIIS 3000

Mechanical properties and fracture toughness directly on a service-exposed component. Nothing is removed, no test piece is cut out.

A fully automatic portable device for the non-destructive determination of structural component properties by instrumented indentation. The clamping system handles pipes, fillet and butt welds and flat surfaces.

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PIIS 3000

3 kN

test force

0.01 µm

indentation depth resolution

±15 mm

indenter travel

10 kHz

data sampling

Technical parameters

The software computes properties for carbon, low-alloy, austenitic and high-strength steels.

Test force
up to 3 kN
Indentation depth resolution
0.01 µm
Maximum indenter travel
±15 mm
Indentation rate
0.001–10 mm/min
Data sampling
up to 10 kHz
XY positioning system
X ±25 mm, Y ±5 mm, resolution 0.1 mm
Standards
ISO/TR 29381 · GB/T 39635-2020 · GB/T 37782-2019 · KSB0950
Scatter band of mechanical properties
usually less than 5–10 %
Scatter band of fracture toughness
less than 15–20 %

What the device determines

01

Yield strength and tensile strength

Directly on the component, with no material removal and no test piece cut out.

02

Young's modulus and Brinell hardness

From the same indentation, in a single measurement.

03

Fracture toughness

The critical stress intensity factor K IC in mode I (crack opening).

04

Strain hardening

The exponent, the constant and the accumulated plastic strain.

05

Residual stress in welds

The clamping system is built for pipes and for fillet and butt welds.

06

The report writes itself

The analytical report is generated automatically and the outputs are archived.

The test on site

The measurement spot is first ground flat and marked on the component; the software then records the whole indentation and evaluates it straight away. Measurement is done on a cooled component — during an outage or on a dismantled part; afterwards the component goes back into service with no repair.

The measurement spot
The measurement spot A ground flat on the component, ready for the indent.
Evaluation in the software
Evaluation in the software The force-depth curve and a data export right there on site.

Measurement on a steam turbine rotor

A rotor taken out for overhaul — cooled down and stripped. The assembly was chained directly onto the shaft and the indents were made in a row on ground flats between the grooves. Afterwards the rotor goes back into service exactly as it was — no block cut out, no welding, no repair.

Clamped on the shaft
Clamped on the shaft The chain fixture holds the assembly directly on the rotor shaft, between the blade discs.
Setting out the spots
Setting out the spots The positions of the measurement spots are measured on the rotor itself and marked according to the plan.
The mark left behind
The mark left behind Indents in a row on ground flats — barely visible, with nothing to repair.

Clamping options

The clamping system adapts to the diameter and the shape of the component — from flanged joints through straight pipe runs to small sections and fittings. Measurement is possible on pipes, fillet and butt welds and flat surfaces.

Set up on a pipe
Set up on a pipe The clamping system on a straight pipe run.
On a pipe bend too
On a pipe bend too The fixture adapts to curved sections as well.
Reachable at height
Reachable at height A large pipe bend can be reached from scaffolding.
Measuring on site
Measuring on site The operator runs the test from the measurement spot itself.
Clamping variants VISUALISATION
Clamping variants Fixtures for the whole range of diameters — from large flanged joints to small fittings.

Dimensions and weights

The tester itself
95 × 95 × 375 mm · 6.2 kg
Tester in its case
540 × 430 × 210 mm · 9.7 kg
Control unit in its case
480 × 390 × 190 mm · 10.3 kg
Laboratory stand
155 × 150 × 175 mm · 7.6 kg
Accessory case
540 × 430 × 410 mm · 17 kg
XY positioning unit
275 × 250 × 135 mm · 4.7 kg
Power supply
1 NPE 230 V AC 50 Hz, 10 A
Alternatively
1 NPE 110 V AC 60 Hz, 20 A
Surge protection
EN 61643-11, SPD 1 and 2

Need the current mechanical properties and condition of critical components without cutting a test piece out of them?

Tell us which component and which material. We will come back with a technical solution and a schedule.

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Materials

Material thumbnail

Product leaflet

A leaflet with more information about the product. This is only available upon request.

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