The non-destructive testing of austenitic stainless steel welds of the primary coolant piping
system is a significant problem for the nuclear industry. Ultrasonic techniques would be very …

Multipass welds made in austenitic stainless steel, in the primary circuit of nuclear power
plants with pressurized water reactors, are characterized by an anisotropic and …

Featured Application Development of a precise Ultrasonic Testing of Welds using material
modelisation: a solution and its development. Abstract To ensure and to demonstrate the …

A finite element modeling approach of ultrasonic propagation combined with a description of
the microstructure at the scale of the grains has been implemented. The simulations seek to …

The knowledge of the anisotropic and heterogeneous behaviour of the material is the key
point for understanding ultrasonic testing. In the case of austenitic stainless steel multipass …

Multipass welds made of 316L stainless steel are specific welds of the primary circuit of
pressurized water reactors in nuclear power plants. Because of their strong heterogeneous …

Herein we derive an expression for direct determination of the geometric autocorrelation
function W of a polycrystalline material from images of its grain boundary network (eg, those …

The unified theory for elastic wave propagation in polycrystalline materials, developed by
Stanke and Kino [J. Acoust. Soc. Am. 75, 665–681 (1984)], has been applied to compute the …

The fundamental principles that govern the propagation of elastic waves in metal
polycrystals are discussed in the context of their influence on nondestructive evaluation. The …

Many cold-working processes for polycrystalline metals cause alignment of the grains with a
single symmetry axis. This type of microstructure is called fiber texture. The existence of a …