Zobrazeno 1 - 10
of 97
pro vyhledávání: '"IULIAN RIPOSAN"'
Publikováno v:
China Foundry, Vol 17, Iss 2, Pp 96-110 (2020)
The first part of the paper summarizes the performance of two mould devices, illustrating by representative shrinkage tendency results in ductile cast iron as affected by mould rigidity (green and furan resin sand moulds) and inoculant type (FeSibase
Externí odkaz:
https://doaj.org/article/87cb4b3284d84bfe95162ee5c9d6d5ee
Publikováno v:
Journal of Materials Research and Technology, Vol 8, Iss 6, Pp 5160-5170 (2019)
The objective of the present paper is to evaluate the occurrence of degenerate graphite in a surface layer on high Si ductile iron (0.032%Mgres, 3.37%C, 3.44%Si, 0.44%Mn, 4.43%CE), solidified in standard thermal analysis ceramic cup. S-bearing coatin
Externí odkaz:
https://doaj.org/article/933bf32470cb4419ba80587ab043a993
Autor:
Irina Varvara Balkan, Iulian Riposan
Publikováno v:
Metals, Vol 11, Iss 7, p 1122 (2021)
Electrically melted and over-heated (>1500 °C) grey cast iron at less than 0.04%S, as commonly used, solidifies large amounts of carbides and/or undercooled graphite, especially in thin wall castings; this is necessary to achieve a stronger inoculat
Externí odkaz:
https://doaj.org/article/b054ff5ae29d4418829ccde245e38443
Publikováno v:
Metals, Vol 11, Iss 5, p 846 (2021)
The solidification cooling curve itself as well as its first derivative, and related temperatures, reported to the calculated equilibrium temperatures in stable and metastable solidification systems, are used to predict the solidification characteris
Externí odkaz:
https://doaj.org/article/19ba4f6d6cb042289552a29fec9e270a
Publikováno v:
Metals, Vol 10, Iss 8, p 1091 (2020)
Previous experiments pointed out that the deviation using a sphere as reference of graphite particles is noticeably increased by Si-alloying, with inoculation as a possible beneficial effect. The main objective of the present work is to evaluate the
Externí odkaz:
https://doaj.org/article/e2ca55b8db124757866a2fe5fc971bb6
Publikováno v:
Metals, Vol 10, Iss 8, p 993 (2020)
The present work compared the solidification pattern of un-inoculated and inoculated hypoeutectic grey cast irons (3.7–3.8% CE), focused on carbide to graphite formation transition, by the use of an adequate experimental technique, able to measure
Externí odkaz:
https://doaj.org/article/a0870c5f1e044f2580bf155506369611
Publikováno v:
China Foundry, Vol 12, Iss 3, Pp 222-230 (2015)
The relative performance of coatings for furan resin sand moulds [P-toluol sulphonic acid (PTSA) as hardener] [FRS-PTSA moulds], was compared by analyzing the surface layer for degenerated graphite in Mg treated iron with 0.020wt.% to 0.054wt.% Mgres
Externí odkaz:
https://doaj.org/article/72623a23a6a24f11b5dbf352b1ccd972
Publikováno v:
China Foundry, Vol 11, Iss 4, Pp 351-364 (2014)
The paper reviews original data obtained by the present authors, revealed in recent separate publications, describing specific procedures for high quality grey irons, and reflecting the forecast needs of the worldwide iron foundry industry. High powe
Externí odkaz:
https://doaj.org/article/0b39587c5db549ca9655d7b252094422
Publikováno v:
China Foundry, Vol 8, Iss 2, Pp 228-234 (2011)
Recent studies revealed that in eutectic to slightly hypereutectic grey irons (CE = 4.3%-4.5%) the presence of austenite dendrites provides an opportunity to improve the cast iron properties, as a high number of eutectic cells are “reinforced” by
Externí odkaz:
https://doaj.org/article/88f14ecc93cc4f929c38e9b774c5acab
Publikováno v:
China Foundry, Vol 7, Iss 2, Pp 163-170 (2010)
The main objective of the present paper is to review the specific characteristics and performance obtaining conditions of heavy ductile iron (DI) castings, typically applied in windmills industry, such as hubs and rotor housings. The requirements for
Externí odkaz:
https://doaj.org/article/860921ef7da54b60b687b2ec91aaff6b