In:
International Journal of Materials Research, Walter de Gruyter GmbH, Vol. 111, No. 5 ( 2020-06-01), p. 379-384
Abstract:
Vermicular graphite cast iron (VGCI) prepared via the sandwich process was treated by annealing, and the microstructure and the mechanical and damping properties before and after the annealing treatment were studied. The graphite size, distribution and morphology did not change significantly after annealing. However, the matrix transformed from ferrite + pearlite to ferrite after annealing, the dislocation density decreased significantly, and the interfacial stacking faults between the matrix and graphite disappeared. The annealing treatment reduced the tensile strength by 〉 12%, but increased the strain-to-fracture value to two times that of the as-cast sample. The damping properties varied with temperature with obvious S-K peaks and Ge peaks. The maximum internal friction changed from 0.023 (as-cast) to 0.011 (post-anneal).
Type of Medium:
Online Resource
ISSN:
2195-8556
,
1862-5282
DOI:
10.1515/ijmr-2020-1110504
Language:
English
Publisher:
Walter de Gruyter GmbH
Publication Date:
2020
detail.hit.zdb_id:
2232675-3
detail.hit.zdb_id:
2128058-7
detail.hit.zdb_id:
203021-4
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