
Residual Stress
Conferences 

paper on these measurements. "Residual
Stresses Measured in Quenched HSLA100 Steel Plate," (LAUR051265)
Results:
Typical Quenching Residual Stresses. Over crosssection of plate
(residual axial (z) stress in MPa)
 Away from
edges, the throughthickness residualstress profile can be approximated
by this curve
 This is
the usual compressiontensioncompression distribution that one
sees from quenching
 The stresses
in the 2D map (above) are different near the edges because the
test piece was cut after quenching from a larger plate. The cutting
changed some stresses near the edges.


Quenched Plate of HSLA100
Steel
 Low carbon, copper
precipitation hardened, HighStrength LowAlloy steel: HSLA100
 Hot crossrolled
 Ausenitized at
900 ºC for 75 minutes, water quench
 Tempered at 660
ºC for 200 minutes, water quench
 61 mm thick
 Yield stress:
690 MPa (100ksi)
Measurement Details
 Cut
in Mitsubishi FX10 wire EDM with 150 µm (0.006") diameter brass
wire.
 Surface contour
measured using MS Impact II CMM.
 Stresses calculated
by applying opposite of measured contour to FEM model:
FEM Model, Front surface (surface that was cut) is deformed
into opposite shape of measured contour

