ISSN: 1945-7553
CODEN: JTEVAB
Page Count: 7

Thermal Fatigue Testing System for Structural Materials

Stocker, PJ
Members of the technical staffmember of ASTM, Science Center, Rockwell International, Thousand Oaks, Calif.

Morris, WL
Members of the technical staffmember of ASTM, Science Center, Rockwell International, Thousand Oaks, Calif.

Robertson, WM
Members of the technical staffmember of ASTM, Science Center, Rockwell International, Thousand Oaks, Calif.

Abstract

A materials testing system has been developed for isothermal and differential thermal fatigue testing of metal specimens. A closed-loop thermal cycle is provided by an induction heater and a gas-liquid cooling manifold. Mechanical control of the specimen, as a direct function of temperature, is provided by a closed-loop electrohydraulic system capable of operating in load, stroke, or strain control. A mechanical diametral extensometer was developed to work with soft materials. A unique specimen design and its related hardware make possible the investigation of materials of widely varying properties, including copper alloys and alloy steels.

Keywords:
thermal fatigue, mechanical properties, steels, fracture (materials), temperature, test method

Paper ID: JTE10542J
DOI: 10.1520/JTE10542J
ASTM International is a member of CrossRef.