Effect of casting design to microstructure and mechanical properties of 4 mm TWDI plate

Rianti Dewi Sulamet-Ariobimo, Johny Wahyuadi Soedarsono, Bambang Suharno

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

5 Citations (Scopus)

Abstract

Casting design is chosen by Soedarsono et al to maintain cooling rate in producing thin wall ductile iron (TWDI). Cooling rate should be maintained to prevent carbide formation. This paper discusses the effect of gating system design on microstructure and mechanical properties of 4 mm TWDI plate. A casting design based on vertical gating system is made to produce TWDI plates with the thickness of 1, 2, 3, 4, and 5 mm. This vertical system allows plates to function as runner which will helps in preventing premature solidification. Three designs were made. These designs are coded as T1, T2, and T3. These three designs were also used in making 1, 2, 3, and 5 mm TWDI plates of which the result has been published. Z-Cast is used to conduct a casting design simulation for filling flow and solidification. The result of flow simulation shows that the filling flow is resulted in two kinds. The result of solidification specifies that the 4 mm TWDI plates solidify in the third place. The result of the experiment highlights that in all of the designs, which have microstructure and consisted of nodule graphite in ferrite matrix, no trace of carbide and skin effect are formed. The length of skin effect varies in all of the designs. The highest nodularity is only 80% while nodule count is 931 nodules/mm2. Brinell hardness number for all of the design is beyond the standard given by JIG G5502. As for UTS, yield strength and elongation none of the designs exceeds the minimal standard. The result of the experiment does not confirm the result of the simulation. In sum, compared to the previous result, the curve trends of 4 mm TWDI plates look similar to 2 mm TWDI plates.

Original languageEnglish
Title of host publicationAdvanced Materials Science and Applied Mechanics
Pages269-274
Number of pages6
DOIs
Publication statusPublished - 8 Jul 2013
Event2013 1st International Conference on Solid State and Materials, ICSSM 2013 - Los Angeles, CA, United States
Duration: 30 Jan 201331 Jan 2013

Publication series

NameAdvanced Materials Research
Volume702
ISSN (Print)1022-6680

Conference

Conference2013 1st International Conference on Solid State and Materials, ICSSM 2013
CountryUnited States
CityLos Angeles, CA
Period30/01/1331/01/13

Keywords

  • 4 mm plate thickness
  • Casting design
  • TWDI

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