Solidification behavior of superalloy IN 939 in melt spinning

Journal Article · Sat Feb 01 00:00:00 EST 1992 · Acta Metallurgica; (United States)

DOI:https://doi.org/10.1016/0956-7151(92)90300-4· OSTI ID:7116270

Ma, D; Sahm, P R ^[1]

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1. Foundry-Inst., Aachen Inst. of Technology, D-5100 Aachen (DE)

This paper reports on the rapid solidification behavior of a ni-base superalloy (IN 939) that has been investigated by means of melt spinning. An attempt was made to determine the variation of the thermal parameters during the solidification in the melt puddle. The microstructure development, especially the segregationlessly solidified layer at the bottom of the ribbons, was studied. The absolute stability theory was used to calculate the critical condition for stability of the used alloy and then compared with the experimental results. By combination with the solidification data of the same alloy in the conventional regime a complete solidification diagram has been mapped out.

• OSTI ID: 7116270
• Journal Information: Acta Metallurgica; (United States), Vol. 40:2; ISSN 0001-6160
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
HEAT RESISTING ALLOYS
SOLIDIFICATION
NICKEL BASE ALLOYS
CALCULATION METHODS
MELTING
MICROSTRUCTURE
STABILITY
THERMODYNAMIC PROPERTIES
THERMOMECHANICAL TREATMENTS
ALLOYS
CRYSTAL STRUCTURE
FABRICATION
HEAT RESISTANT MATERIALS
HEAT TREATMENTS
MATERIALS
MATERIALS WORKING
NICKEL ALLOYS
PHASE TRANSFORMATIONS
PHYSICAL PROPERTIES
360102* - Metals & Alloys- Structure & Phase Studies
360104 - Metals & Alloys- Physical Properties
360103 - Metals & Alloys- Mechanical Properties