Solidification Based Grain Refinement in Steels

reportActive / Technical Report | Accession Number: ADA550487 | Open PDF

Abstract:

The overall research objective of this project is to determine suitable grain refiners for cast steels. Specific objectives are 1 Identify possible phases to grow delta ferrite and austenite using current nucleation theory, crystallographic data, and thermodynamics. 2 Experimentally verify the effectiveness of possible nucleating compounds. 3 Extend grain refinement theory and solidification knowledge through experimental data. 4 Determine structure property relationships for the examined grain refiners. 5 Formulate processing techniques for using grain refiners in the steel casting industry.

Author(s):
Tuttle, Robert
Author Organization(s):
SAGINAW VALLEY STATE UNIV UNIVERSITY CENTER MI
Descriptive Note:
Annual rept. 1 Jul 2009-30 Jun 2010
Supplementary Note:
DOI: 10.21236/ADA550487
Pagination:
0030

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release
Distribution Statement:
Approved For Public Release; Distribution Is Unlimited.

RECORD

Collection: TR
Identifying Numbers
Contract/Grant Number(s):
N00014-08-1-1052
Monitor Series:
ONR
 Subject Terms
Joint Capability Areas:
JCA_5_Command and Control; JCA_1.2.7_Experimentation; JCA_5.5.2_Task; JCA_5.5_Direct; JCA_5.3_Planning; JCA_1.2_Force Preparation; JCA_1_Force Support; JCA_3.2_Engagement; JCA_3_Force Application; JCA_1.2.3_Educating; JCA_5.2.2_Develop Knowledge and Situational Awareness; JCA_5.2_Understand; JCA_8_Building Partnerships; JCA_3.2.1_Kinetic Means; JCA_6_Net Centric; JCA_8.2_Shape
Communities of Interest:
Energy and Power Technologies
Descriptor(s):
*CASTING, *GRAIN STRUCTURES(METALLURGY), *STEEL, CRYSTALLOGRAPHY, GRAIN SIZE, HARDNESS, MECHANICAL PROPERTIES, NUCLEATION, REFINING, SOLIDIFICATION
Field(s)/Group(s):
Properties of Metals and Alloys, Fabrication Metallurgy
Keyword(s):
HETEROGENEOUS NUCLEATION, FOUNDRY, GRAIN REFINEMENT, TENSILE TESTING
Report Date:
2010 Jul 20
Creation Date:
2011 Nov 14