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Title: Evolution of Tantalum Content During Vacuum Induction Melting and Electroslag Remelting of a Novel Martensitic Steel

Abstract

The need for materials with superior thermal and mechanical properties while mitigating cost increases interest in new complex alloy compositions which brings challenges to manufacturing processes. In this investigation, vacuum induction melting (VIM) and electroslag remelting (ESR) of a novel tantalum (Ta)-containing martensitic steel was performed using standard industry practices at a laboratory scale. A 25 pct loss of Ta was measured from the VIM electrode to the ESR ingot using X-ray fluorescence. Several tools were used for broad characterization of the ingots, including LECO for chemistry analysis, scanning electron microscopy, and electron probe microanalysis for observation of the precipitate and inclusion phases post-VIM and post-ESR as well as computational modeling of the ESR process for the calculation of macrosegregation and inclusion travel. Here, it was found that a significant amount of Ta 2O 5 inclusions formed during VIM and were transferred to the slag during ESR. While ESR was particularly successful at decreasing the number density of inclusions by 95 pct, additional efforts are needed with regard to vacuum leak rate and purity of stock material when melting novel advanced steels.

Authors:
 [1];  [2];  [2]
  1. National Energy Technology Lab. (NETL), Albany, OR (United States); Leidos Research Support Team, Pittsburgh, PA (United States)
  2. National Energy Technology Lab. (NETL), Albany, OR (United States)
Publication Date:
Research Org.:
National Energy Technology Laboratory (NETL), Pittsburgh, PA, Morgantown, WV, and Albany, OR (United States)
Sponsoring Org.:
USDOE Office of Fossil Energy (FE)
OSTI Identifier:
1582384
Resource Type:
Accepted Manuscript
Journal Name:
Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science
Additional Journal Information:
Journal Volume: 50; Journal Issue: 4; Journal ID: ISSN 1073-5615
Publisher:
ASM International
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; Electroslag remelting; Vacuum induction melting; Slag; Tantalum; Oxide; Steel

Citation Formats

Detrois, Martin, Jablonski, Paul D., and Hawk, Jeffrey A. Evolution of Tantalum Content During Vacuum Induction Melting and Electroslag Remelting of a Novel Martensitic Steel. United States: N. p., 2019. Web. doi:10.1007/s11663-019-01614-z.
Detrois, Martin, Jablonski, Paul D., & Hawk, Jeffrey A. Evolution of Tantalum Content During Vacuum Induction Melting and Electroslag Remelting of a Novel Martensitic Steel. United States. doi:10.1007/s11663-019-01614-z.
Detrois, Martin, Jablonski, Paul D., and Hawk, Jeffrey A. Fri . "Evolution of Tantalum Content During Vacuum Induction Melting and Electroslag Remelting of a Novel Martensitic Steel". United States. doi:10.1007/s11663-019-01614-z.
@article{osti_1582384,
title = {Evolution of Tantalum Content During Vacuum Induction Melting and Electroslag Remelting of a Novel Martensitic Steel},
author = {Detrois, Martin and Jablonski, Paul D. and Hawk, Jeffrey A.},
abstractNote = {The need for materials with superior thermal and mechanical properties while mitigating cost increases interest in new complex alloy compositions which brings challenges to manufacturing processes. In this investigation, vacuum induction melting (VIM) and electroslag remelting (ESR) of a novel tantalum (Ta)-containing martensitic steel was performed using standard industry practices at a laboratory scale. A 25 pct loss of Ta was measured from the VIM electrode to the ESR ingot using X-ray fluorescence. Several tools were used for broad characterization of the ingots, including LECO for chemistry analysis, scanning electron microscopy, and electron probe microanalysis for observation of the precipitate and inclusion phases post-VIM and post-ESR as well as computational modeling of the ESR process for the calculation of macrosegregation and inclusion travel. Here, it was found that a significant amount of Ta2O5 inclusions formed during VIM and were transferred to the slag during ESR. While ESR was particularly successful at decreasing the number density of inclusions by 95 pct, additional efforts are needed with regard to vacuum leak rate and purity of stock material when melting novel advanced steels.},
doi = {10.1007/s11663-019-01614-z},
journal = {Metallurgical and Materials Transactions. B, Process Metallurgy and Materials Processing Science},
number = 4,
volume = 50,
place = {United States},
year = {2019},
month = {5}
}

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Works referenced in this record:

Mass Transfer Model of Desulfurization in the Electroslag Remelting Process
journal, February 2017

  • Hou, Dong; Jiang, Zhou-Hua; Dong, Yan-Wu
  • Metallurgical and Materials Transactions B, Vol. 48, Issue 3
  • DOI: 10.1007/s11663-017-0921-0

Effects of Reoxidation of Liquid Steel and Slag Composition on the Chemistry Evolution of Inclusions During Electroslag Remelting
journal, June 2018

  • Shi, Chengbin; Wang, Hui; Li, Jing
  • Metallurgical and Materials Transactions B, Vol. 49, Issue 4
  • DOI: 10.1007/s11663-018-1296-6

Macrosegregation During Electroslag Remelting of Alloy 625
journal, December 2014

  • Fezi, Kyle; Yanke, Jeffrey; Krane, Matthew John M.
  • Metallurgical and Materials Transactions B, Vol. 46, Issue 2
  • DOI: 10.1007/s11663-014-0254-1

Using JMatPro to model materials properties and behavior
journal, December 2003


Effect of Slag on Inclusions During Electroslag Remelting Process of Die Steel
journal, May 2014

  • Dong, Yan-Wu; Jiang, Zhou-Hua; Cao, Yu-Long
  • Metallurgical and Materials Transactions B, Vol. 45, Issue 4
  • DOI: 10.1007/s11663-014-0070-7

Effect of SiO2 on the Crystallization Behaviors and In-Mold Performance of CaF2-CaO-Al2O3 Slags for Drawing-Ingot-Type Electroslag Remelting
journal, June 2015

  • Shi, Cheng-Bin; Li, Jing; Cho, Jung-Wook
  • Metallurgical and Materials Transactions B, Vol. 46, Issue 5
  • DOI: 10.1007/s11663-015-0402-2

The heat capacity and enthalpy of fusion of slags used in electroslag remelting
journal, September 1981

  • Gohil, Dipak D.; Mills, Kenneth C.
  • Archiv für das Eisenhüttenwesen, Vol. 52, Issue 9
  • DOI: 10.1002/srin.198104944

Estimation Model for Electrical Conductivity of Molten CaF2-Al2O3-CaO Slags Based on Optical Basicity
journal, December 2014


Homogenizing Advanced Alloys: Thermodynamic and Kinetic Simulations Followed by Experimental Results
journal, November 2016

  • Jablonski, Paul D.; Hawk, Jeffrey A.
  • Journal of Materials Engineering and Performance, Vol. 26, Issue 1
  • DOI: 10.1007/s11665-016-2451-3

Distribution of niobium or tantalum between fluorine-containing slag and iron in blast furnace smelting
journal, October 1990

  • Han, Qiyong; Deng, Jian; Huang, Shiliang
  • Metallurgical Transactions B, Vol. 21, Issue 5
  • DOI: 10.1007/BF02657813

Characteristics of inclusions in high-Al steel during electroslag remelting process
journal, March 2012

  • Shi, Cheng-bin; Chen, Xi-chun; Guo, Han-jie
  • International Journal of Minerals, Metallurgy, and Materials, Vol. 19, Issue 4
  • DOI: 10.1007/s12613-012-0554-x

Numerical analysis of inclusion motion behavior in electroslag remelting process
journal, October 2018


Electroslag remelting: A process overview [Elektropretaljevanje pod žlindro – pregled procesa]
journal, December 2016

  • Arh, Boštjan; Podgornik, Bojan; Burja, Jaka
  • Materiali in tehnologije, Vol. 50, Issue 6
  • DOI: 10.17222/mit.2016.108

Thermo-Calc & DICTRA, computational tools for materials science
journal, June 2002


Effect of Slag on Titanium, Silicon, and Aluminum Contents in Superalloy During Electroslag Remelting
journal, February 2016

  • Jiang, Zhou-Hua; Hou, Dong; Dong, Yan-Wu
  • Metallurgical and Materials Transactions B, Vol. 47, Issue 2
  • DOI: 10.1007/s11663-015-0530-8

Tantalum—processing, properties and applications
journal, October 1989


Vacuum induction melting: the revolutionary influence in steelmaking
journal, December 1967