Colorado School of Mines Metallurgical and Materials Engineering Professor Zhenzhen Yu was featured by Oak Ridge National Laboratory, the largest US Department of Energy science and energy laboratory . Yu's research is using neutrons at HFIR’s NRSF2 to investigate residual stresses expected to occur in the welds of offshore underwater wind turbine foundations. From the article: “The hybrid laser-arc welding technique introduces a more focused heat source that allows us to mitigate residual stress,” said Yu. “In the ocean, saltwater eventually creates corrosion, and if you have high degrees of ....