Effect of process condition in the centrifugal casting on the mechanical behavior of Cr heat resisting steel

Hyup Jae Chung, Kyong Yop Rhee

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

Abstract

In the present study, the effects of forging or ring-mill processing on the tensile properties of B7B4 were investigated. Tensile specimens were fabricated including centrifugal casting (Case 1), centrifugal casting + forging (Case 2), and centrifugal casting + ring-mill (Case 3). Tensile tests were performed at room temperature. An optical microscope and a scanning electron microscope (SEM) were used to examine the changes in the microstructures of the specimens prepared by the three processes. The results showed that the moduli of elasticity and yield stresses of B7B4 prepared by the three processes had no much difference. The elongations of Case 2 and Case 3 were 30% higher than that of Case 1. SEM images revealed that the orientation and fine structure were affected by the forging and ring-mill processes.

Original languageEnglish
Title of host publicationMulti-Functional Materials and Structures III
Pages463-466
Number of pages4
DOIs
Publication statusPublished - 2010
Event3rd International Conference on Multi-Functional Materials and Structures, MFMS 2010 - Jeonju, Korea, Republic of
Duration: 14 Sept 201018 Sept 2010

Publication series

NameAdvanced Materials Research
Volume123-125
ISSN (Print)1022-6680

Conference

Conference3rd International Conference on Multi-Functional Materials and Structures, MFMS 2010
Country/TerritoryKorea, Republic of
CityJeonju
Period14/09/1018/09/10

Keywords

  • Centrifugal casting
  • Forging
  • Ring-mill
  • Turbine diaphragm

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