Description of data: The data set consists of seven main folders. The data is divided into folders based on the technique used to obtain the data. 1. XRD The XRD folder consists of two subfolders: · XRD of powder: raw data from diffractometer, which were used to create Fig. 3. · XRD of bulk samples: raw data from diffractometer, which were used to prepare Fig. 10. 2. SEM The SEM folder consists of six subfolders: · SEM of powder: SEM images, which were used to create Fig. 1 showing powder morphology. · EDS of powder: SEM images and EDS spectra (p11.tif, p13.tif, p30.tif, p32.tif), which were used to create Fig. 2, show the chemical homogeneity of the powder. · SEM of bulk samples: SEM images of bulk samples that were used to create Fig. 4. · EDS of bulk samples: it consists of two SEM images of the region of interest (i.e., ODS-1-Ti.tif and ODS-2-TiV) and two .docx files (i.e., ODS-1-Ti.docx and ODS-2-TiV.docx) with maps of distribution of chemical elements selected for the analysis. These data were used to create Fig. 5. · EBSD of bulk samples: This subfolder consists of several files. ODS-1-Ti_EBSD_grain_leg_info.txt and ODS-2-TiV_EBSD_grain_leg_info.txt files consist of data from the EBSD software, which enable us to create a histogram of grain size in Fig. 9c. ODS-1-Ti_EBSD_info.txt, ODS-1-Ti_EBSD_leg.bmp, and ODS-2-TiV_EBSD_info.txt, ODS-2-TiV_EBSD_leg.bmp files contain information about the acquisition parameters of EBSD maps. ODS-1-Ti_EBSD_IPF.bmp and ODS-2-TiV_EBSD_IPF.bmp files are EBSD maps, which were used to create Fig. 9a and Fig. 9b. · SEM of indentation sites: SEM images of indentation sites which were used to create Fig. 11c and Fig. 11d. 3. TEM The TEM folder consists of two subfolders: · TEM of bulk samples: TEM/STEM images and data about precipitates (Histograms data.xlsx), which were used to create Fig. 7. · STEM EDS of bulk samples: In each subfolder (ODS-1-Ti and ODS-2-TiV), there are maps of the distribution of elements in both studied samples. These data were used to create Fig. 8. 4. Density: the folder contains a file with data related to the density measurements, which were used to create Table 3. 5. XRF: the folder contains two files related to XRF composition measurements. In the XRF-graphs.docx file, two plots are shown that are used to create Fig. 6. In XRF_data.opju, the data from the XRF device is shown. 6. Hardness: the folder contains a file with raw data of hardness measurements. Nanoindentation: the folder contains two files, i.e., Nanoindentation.xlsx and Nanoindentation.opju, which contain nanoindentation data used to create Fig. 11a and Fig. 11b.