Formation of property gradient in coarse-grained niobium using a wedge tool : experiment and analysisTarasov, Oleksandr; Kübarsepp, Jakob; Viljus, Mart; Saarna, Mart; Sergejev, FjodorInternational journal of refractory metals and hard materials2024 / art. 106905 https://doi.org/10.1016/j.ijrmhm.2024.106905