PrefaceThese proceedings present the written contributions of the participants of the 4th International Meeting for Researchers in Materials and Plasma Technology (4th IMRMPT) which was held from 23 to May 26, 2017, at the Santa Marta city, Colombia, organized by Foundation Of Researchers In Science and Technology Of Materials (FORISTOM). This was the fourth version of biennial meetings that began in 2011.The proceedings consist of 75 contributions that were presented as plenary talks at the conference. The abstracts of all participants contributions were published in the Book with ISSN 2422-3824. The website of the conference is available at http://foristom.org:8080/4imrmpt.The four-day scientific program of the 4th IMRMPT consisted of 7 Magisterial Conferences, 64 Oral Presentations, 112 Poster Presentations, 3 Courses and 1 Discussion Panel with the participation of undergraduate and graduate students, professors, researchers and entrepreneurs from Colombia, Russia, Spain, Unite Kingdom, Mexico, Uruguay, Brazil, Venezuela, among others. Moreover, the objective of IMRMPT was to bring together national and international researchers in order to establish a network of scientific cooperation with a global impact in the area of the science and the technology of materials; to promote the exchange of creative ideas and the effective transfer of scientific knowledge, from fundamental research to innovation applied to industrial solutions and to advance in the development of new research allowing to increase the lifetime of the materials used in the industry by means of efficient transference of the knowledge between sectors academia and industry.List of Organizing Committee, National Scientific Committee, International Scientific Committee, Sponsor and Partners are available in this pdf.