Accession Number : AD0624267

Title :   DEFORMATION CHARACTERISTICS OF METALS AND ALLOYS.

Descriptive Note : Final rept.,

Corporate Author : SYRACUSE UNIV RESEARCH INST N Y DEPT OF CHEMICAL ENGINEERING AND METALLURGY

Personal Author(s) : Weiss,V. ; Kot,R. ; Oelschlagel,D.

Report Date : SEP 1965

Pagination or Media Count : 103

Abstract : The effects of deformation during a phase transformation were studied on the three plain carbon steels AISI 1018, 1045 and 1095, the bearing steel AISI 52100 and commercially pure titanium. Specimens subjected to a constant load were cycled through the alpha reversibly yields gamma or alpha reversibly yields beta transformation range. A considerable increase in the creep rate is observed due to the occurrence of the phase transformations. For the steels, the elongation per complete temperature cycle increases linearly with the applied stress up to 2500 psi and elongations of 500 percent and more are observed on specimens temperature cycled to complete failure. It is further shown that on heating (alpha yields gamma transformation) the steels investigated deform more than on cooling (gamma yields alpha transformation). Titanium also exhibits a linear relationship between the elongation per temperature cycle and the applied stress, and gives an elongation of approx. 300% when temperature cycled to failure. (Author)

Descriptors :   (*STEEL, DEFORMATION), (*TITANIUM, DEFORMATION), PHASE STUDIES, TRANSFORMATIONS, CREEP, STRESSES, FATIGUE(MECHANICS), FRACTURE(MECHANICS), TENSILE PROPERTIES

Subject Categories : Properties of Metals and Alloys

Distribution Statement : APPROVED FOR PUBLIC RELEASE