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Titolo:
MICROSTRUCTURE OF PD77.5AU6SI16.5 ALLOY DROPLET SOLIDIFIED IN A DROP TUBE PROCESS
Autore:
SUN LL; WU Q; SUN LW; WANG WK;
Indirizzi:
CHINESE ACAD SCI,INST PHYS,POB 603 BEIJING 100080 PEOPLES R CHINA
Titolo Testata:
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
fascicolo: 5, volume: 12, anno: 1996,
pagine: 385 - 388
SICI:
1005-0302(1996)12:5<385:MOPADS>2.0.ZU;2-Y
Fonte:
ISI
Lingua:
ENG
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Science Citation Index Expanded
Science Citation Index Expanded
Citazioni:
7
Recensione:
Indirizzi per estratti:
Citazione:
L.L. Sun et al., "MICROSTRUCTURE OF PD77.5AU6SI16.5 ALLOY DROPLET SOLIDIFIED IN A DROP TUBE PROCESS", JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY, 12(5), 1996, pp. 385-388

Abstract

The microstructure development of Pd(77.5)AU(6)Si(16.5) alloy dropletsolidified in a drop tube process was studied. It was found that two distinct microstructures, i.e. (Pd,Au)(3)Si primary phase and Pd+(Pd,Au)(3)Si eutectic can be obtained when the droplet diameter is within the range between 2.3 similar to 0.4 mm. The morpologies of the (Pd,Au)(3)Si developed from dendrite trunk-like with single branching only into dendrite cluster-like with ternary branching with the decrease of the droplet diameter. When the droplet diameter is about 0.25 mm, the primary phase (Pd,Au)(3)Si almost disappears and the microstructure mainly shows Pd+(Pd,Au)(3)Si eutectic. The morphology of the eutectic transforms from fiber-like to plate-like with the decrease of the dropletdiameter in the range between 2.3-0.25 mm. When the droplet diameter is about 0.19 mm, the microstructure is only the single phase of Pd solid solution.

ASDD Area Sistemi Dipartimentali e Documentali, Università di Bologna, Catalogo delle riviste ed altri periodici
Documento generato il 29/03/20 alle ore 23:19:50