HEAT TREATMENT STUDIES TO IMPROVE THE HOT SHORT DUCTILITY OF RENE' 41 ALLOY SHEET

Abstract

Heat treat studies were conducted to develop thermal cycling procedures for improving the mechanical properties of Rene' 41 with particular emphasis on elongation in the critical temperature range from 1400 to 1700 F. Integrated with improvement of mechanical properties were utilization of pre-established brazing cycles and long-time prolonged aging of Rene' 41 alloy sheet to simulate the time-temperature operation of a hot wall structure. Specimens fabricated from 0.010- and 0.063-inch thick Rene' 41 sheet subjected to eight different thermocycling procedures. The specimens were equally divided and aged at 1650 F for 50 hours in an oxidizing or in a nonoxidizing (vacuum) atmosphere. Short time tensile and stress-rupture tests were conducted to determine(1) tensile properties at room temperature and 1500 F, and (2) stress-to rupture in 100 hours at 1600 F.

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Document Details

Document Type
Technical Report
Publication Date
Jun 15, 1963
Accession Number
AD0407812

Entities

People

  • A. S. Rabensteine

Tags

Communities of Interest

  • Air Platforms
  • Counter IED

DTIC Thesaurus Topics

  • Alloys
  • Atmospheres
  • Base Metal
  • California
  • Critical Temperature
  • Ductility
  • Elongation
  • Engineering
  • Government Procurement
  • Heat Treatment
  • Heating
  • Materials
  • Mechanical Properties
  • Strain Rate
  • Tensile Properties
  • Tensile Strength
  • Yield Strength

Fields of Study

  • Materials science

Readers

  • Battery Technology and Engineering
  • Metallurgy