Physical and mechanical properties of cast 17-4 PH stainless steel
The physical and mechanical properties of an overaged 17-4 PH stainless steel casting have been examined. The tensile and compressive properties of cast 17-4 PH are only influenced to a slight degree by changing test temperature and strain rate. However, both the Charpy impact energy and dynamic fracture toughness exhibit a tough-to-brittle transition with decreasing temperature - this transition being related to a change in fracture mode from ductile, dimple to cleavage-like. Finally, although the overaged 17-4 PH casting had a relatively low room temperature Charpy impact energy when compared to wrought 17-4 PH, its fracture toughness was at least comparable to that of wrought 17-4 PH. This observation suggests that prior correlations between Charpy impact energies and fracture toughness, as derived from wrought materials, must be approached with caution when applied to cast alloys.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (USA)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6607517
- Report Number(s):
- SAND-80-2302; TTC-0161
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
360103* -- Metals & Alloys-- Mechanical Properties
360104 -- Metals & Alloys-- Physical Properties
ALLOYS
CASTING
CHROMIUM ALLOYS
CORROSION RESISTANT ALLOYS
ELECTRON MICROSCOPY
EXPANSION
FABRICATION
FRACTURE PROPERTIES
HIGH TEMPERATURE
IMPACT STRENGTH
IRON ALLOYS
IRON BASE ALLOYS
MECHANICAL PROPERTIES
MEDIUM TEMPERATURE
MICROSCOPY
PHYSICAL PROPERTIES
POISSON RATIO
SCANNING ELECTRON MICROSCOPY
SHEAR PROPERTIES
SPECIFIC HEAT
STAINLESS STEEL-17-4PH
STAINLESS STEELS
STEELS
TEMPERATURE EFFECTS
THERMAL CONDUCTIVITY
THERMAL DIFFUSIVITY
THERMAL EXPANSION
THERMODYNAMIC PROPERTIES
YOUNG MODULUS