Technical reports published by the Air Force Materials Laboratory during the period 1 January 1974 - 31 December 1974 are abstracted herein. They are presented in groups corresponding to the divisions of the Laboratory. In addition to the abstract text, the report number, author, AFML project monitor, contractor, contract number, AFML project/task number, report date, and AMIC accession numbers are given. Reports on research conducted by the Air Force Materials Laboratory personnel as well as that conducted on contract are included. A number of indices are included in the report: subject (KWOC), AD accession number, AFML report number, contract number, contractor, author, and AFML project monitor. (Author).