NDLI: Effect of Heat Treatment on Mechanical Properties and Microstructure of Alloy 901

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Effect of Heat Treatment on Mechanical Properties and Microstructure of Alloy 901

Content Provider	Semantic Scholar
Author	Frank, Richard B. Mahidhara, Rao K.
Copyright Year	1988
Abstract	Two types of heat treatments are commonly used for alloy 901, one to optimize resistance to creep and rupture and the other, to improve tensile and fatigue properties. Solution and aging-treatment parameters (temperature, time, quench) for both types of heat treatment were varied within the ranges permitted by common specifications to define heat treatments resulting in improved combinations of room-temperature strength and ductility along with good stress-rupture properties. Room-temperature tensile and 1200°F stress-rupture tests were performed and microstructures were evaluated using light and electron microscopy. Structure/property relationships were defined. The results showed that relatively small variations in heat-treatment parameters resulted in significant differences in mechanical properties and microstructure. Room-temperature tensile properties were optimized without degrading 1200.'F stress-rupture properties. Mechanical properties were dependent on grain size and the characteristics of the grain boundary carbide and matrix hardening (y') precipitates.
Starting Page	23
Ending Page	32
Page Count	10
File Format	PDF HTM / HTML
DOI	10.7449/1988/Superalloys_1988_23_32
Alternate Webpage(s)	http://www.tms.org/superalloys/10.7449/1988/Superalloys_1988_23_32.pdf
Alternate Webpage(s)	https://doi.org/10.7449/1988%2FSuperalloys_1988_23_32
Language	English
Access Restriction	Open
Content Type	Text
Resource Type	Article

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