Intragranular three-dimensional stress tensor fields in plastically deformed polycrystals

Probing polycrystals' stress The way that a polycrystalline material deforms is in part determined by internal stresses between and within crystal grains. Hayashi et al. developed an x-ray method for mapping the intragranular stresses in a polycrystalline material. They found surprisingly large stresses, which are important for the fundamental understanding of how these materials will fail. This method will work for other materials and provides important information for multiscale deformation modeling. Science , this issue p. 1492