TY - JOUR T1 - Development of an Ag-Free Sn–Ti–Ni Solder for Low-Temperature Ultrasonic-Assisted Flux-Free Joining of Aluminium Alloys in Air JO - Metallurgical and Materials Transactions A UR - https://eprints.whiterose.ac.uk/id/eprint/245577 UR - https://doi.org/10.1007/s11661-026-08352-3 PY - 2026/09/01 AU - Hardwick L AU - Kumar M AU - Xiao Y AU - Goodall R ED - DO - DOI: 10.1007/s11661-026-08352-3 PB - Springer Science and Business Media LLC Y2 - 2026/09/23 ER -