Editorial – Special Issue on Advances in Materials and Processing Technologies – AMPT 2022 The Advances in Materials and Processing Technol- ogies (AMPT) international conference series was founded in 1990 at the Dublin City University, Dublin, Ireland, and since then has been held in many different countries around the globe. The conference provides a forum for academics, researchers, and practicing engi- neers. It aims to bring them together to meet, exchange and share their experiences, research results, information and ideas on all aspects of materials and processing tech- nologies. It also provides a premier interdisciplinary platform to present and discuss the most recent innova- tions, trends, and concerns as well as practical challenges encountered and solutions adopted in this field. After be- ing cancelled in 2020 due to the COVID pandemic, dur- ing 10–14 October 2022, for the first time, the AMPT conference was held along the beautiful Adriatic–Medi- terranean coast of Slovenia in Portoro , located in the municipality of the historical Venetian-style town of Piran. The conference was attended by more than 100 participants from 19 countries, supported by 5 sponsors and exhibitors and during the course of the conference scientific results were provided in the form of 5 invited talks, 60 oral presentations and 15 posters. This is a re- markable number, taking into account the circumstances and pandemic travel restrictions still in place in certain parts of the world. The topics covered by the presentations given at AMPT 2022 included: • Forming processes; Bulk forming, Rolling, Stamping, Fine Blanking, Net-Shape Forming, Hydroforming, Casting and Welding, Forming in Near Melt Condi- tion. • Machining processes; Cutting, Grinding and Pol- ishing, Abrasive Machining, EDM Machining, Non-Conventional Machining. • Precision Engineering and Metrology; Surface Mea- surement and Characterization, In-process and On-line Measurement, Microscopy. • Micro/Nano Technology; MEMS Device and System Design, Micro Forming, Nano materials, Biomimetic, Carbon-Based Materials. • Materials Science and Processing; Smart Materials, Biomaterials, Functional and Flexible Materials, HEA, Materials for High-Temperature Applications, Metals, Ceramics, Light-Weight Materials, Polymers, Composites, Timber, Renewable Materials. • Heat treatment and Surface Engineering; Heat and thermo-chemical treatments, PVD & CVD Coatings, Thermal Spray Coatings, Surface Modification, High-Energy-Beam Processing, Tribology. • Additive Manufacturing; Powder Technology, 3D metal printing, Process Control, Design, Printing and Heat Treatment. • Modelling and Simulation; Computer Aided Engi- neering, Modelling, Simulation, Sensors design, Big Data, Cloud Computing. • Smart Manufacturing and Management; Industry 4.0, Quality and Reliability, Green Manufacturing, Sus- tainable Manufacturing, Recycling, Biocompatibility and Biodegradability. This Special Issue on AMPT 2022 includes 7 se- lected papers presented at the 23 rd International Confer- ence on Advances in Materials and Processing Technol- ogies, focusing on a variety of problems related to topics of Materials and Processing Technologies. Producing this special issue required significant ef- forts from the authors, reviewers, editors and publication team, who are all gratefully acknowledged. The editors are also grateful for the support from their respective or- ganizations. The guest editors of this special issue would especially like to thank Mr. Miro Pe~ar for his support and help in compiling this issue. Prof. dr. Bojan Podgornik Institute of Metals and Technology Lepi pot 11 1000 Ljubljana, Slovenia bojan.podgornik@imt.si Dr. Marko Sedla~ek Institute of Metals and Technology Lepi pot 11 1000 Ljubljana, Slovenia marko.sedlacek@imt.si Materiali in tehnologije / Materials and technology 57 (2023) 5, 3