All papers published in this volume of IOP Conference Series: Materials Science and Engineering have been peer reviewed through processes administered by the Editors. Reviews were conducted by expert referees to the professional and scientific standards expected of a proceedings journal published by IOP Publishing. • Type of peer review: Double-blind • Conference submission management system: no, articles were sent directly to editor on conference e-mail icmtmt@gmail.com • Number of submissions received: 512 • Number of submissions sent for review: 455 • Number of submissions accepted: 416 • Acceptance Rate (Number of Submissions Accepted / Number of Submissions Received X 100): 81,25 • Average number of reviews per paper: 2 • Total number of reviewers involved: 910 The main criteria for the review were: 1. Is the topic in the conference scope? 2. Is subject is worthy the publication? 3. Is information new? 4. Is paper written in acceptable English? For each question, the reviewer used scale from 1 to 5 to answer. The reviewer also checked that article was formatted according the Template, that all references, figures and tables were cited in the text and provided other comments. • Contact person for queries: Dr. Stanislav Roshchupkin, icmtmte@gmail.com, Tel. +79787040395