This special issue contains a selected papers presented at the 24th Brazilian Congress on Materials Science and Since its inception in 1974, the Brazilian Congress on Materials Science and Engineering - CBECiMat, has been a cornerstone event in the realm of Materials Science and Engineering, playing a pivotal role in fostering collaboration and advancing knowledge within the community. This biennial event, now in its 24th edition, has garnered longstanding commemorating its 50th anniversary as the pioneering materials engineering program in Brazil. Due to the Coronavirus (COVID-19) pandemic the event was postponed for two years to gather the Materials Science and Engineering community The conference boasted approximately 840 registered participants from across the nation (representing 24 federative units) and worldwide, complemented by 7 plenary sessions, 145 oral presentations, and 2044 poster presentations2. We are thrilled to announce that this special edition pledges to offer a comprehensive compilation of the most recent and captivating advancements in Materials Science and Engineering, reflecting the dynamic and ever-evolving nature of the field. In fact, the conference convened to explore a broad spectrum of cutting-edge materials and processes, such as new materials for Our heartfelt appreciation to our esteemed reviewers, whose expertise and dedication have been instrumental in curating a selection of articles of the utmost quality. Our gratitude is also extended to the generous support received from to join us for the upcoming edition in November 2024, set to take place in the city of Fortaleza-CE, Brazil.