NDLI: Simultaneous Modification of Alumina and MgO·Al$_{2}$O$_{3}$ Inclusions by Calcium Treatment During Electroslag Remelting of Stainless Tool Steel

Content Provider	Springer Nature Link
Author	Shi, Cheng Bin Yu, Wen Tao Wang, Hao Li, Jing Jiang, Min
Copyright Year	2016
Abstract	Calcium modification of both alumina and MgO·Al$_{2}$O$_{3}$ inclusions during protective gas electroslag remelting (P-ESR) of 8Cr17MoV stainless steel and its effect on nitrides and primary carbides were studied by analyzing the transient evolution of oxide and sulfide inclusions in the P-ESR process. The oxide inclusions that were not removed during P-ESR without calcium treatment were found to retain their original state until in as-cast ingot. Calcium treatment modified all MgO·Al$_{2}$O$_{3}$ and alumina inclusions that had not been removed in the P-ESR process to liquid/partially liquid CaO-Al$_{2}$O$_{3}$-(MgO) with uniformly distributed elements, in addition to a small proportion of partially modified inclusions of a CaO-MgO-Al$_{2}$O$_{3}$ core surrounded by a liquid CaO-Al$_{2}$O$_{3}$. The modification of low-MgO-containing MgO·Al$_{2}$O$_{3}$ inclusions involves the preferential reduction of MgO from the MgO·Al$_{2}$O$_{3}$ inclusion by calcium and the reaction of calcium with Al$_{2}$O$_{3}$ in the inclusion. It is the incomplete/complete reduction of MgO from the spinel by calcium that contributes to the modification of spinels. Alumina inclusions were liquefied by direct reaction with calcium. Calcium treatment during P-ESR refining also provided an effective approach to prevent the formation of nitrides and primary carbides in stainless steel through modifying their preferred nucleation sites (alumina and MgO·Al$_{2}$O$_{3}$ inclusions) to calcium aluminates, which made no contribution to improving the steel cleanliness.
Starting Page	146
Ending Page	161
Page Count	16
File Format	PDF
ISSN	10735615
Journal	Metallurgical and Materials Transactions B
Volume Number	48
Issue Number	1
e-ISSN	15431916
Language	English
Publisher	Springer US
Publisher Date	2016-08-29
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Metallic Materials Characterization and Evaluation of Materials Structural Materials Surfaces and Interfaces, Thin Films Nanotechnology
Content Type	Text
Resource Type	Article
Subject	Materials Chemistry Metals and Alloys Mechanics of Materials Condensed Matter Physics

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Control of MgO·Al$_{2}$O$_{3}$ Spinel Inclusions during Protective Gas Electroslag Remelting of Die Steel

Correction to: Simultaneous Modification of Alumina and MgO·Al2O3 Inclusions by Calcium Treatment During Electroslag Remelting of Stainless Tool Steel

Modification of MgO·Al$_{2}$O$_{3}$ spinel inclusions in Al-killed steel by Ca-treatment

Formation and Modification of MgO·Al$_{2}$O$_{3}$-Based Inclusions in Alloy Steels

Effect of Slag on Inclusions During Electroslag Remelting Process of Die Steel

Effect of electroslag remelting on carbides in 8Cr13MoV martensitic stainless steel

Characteristics of inclusions in high-Al steel during electroslag remelting process

Characteristics and Modification of Non-metallic Inclusions in Titanium-Stabilized AISI 409 Ferritic Stainless Steel

Calcium Modification of Spinel Inclusions in Aluminum-Killed Steel: Reaction Steps

Simultaneous Modification of Alumina and MgO·Al$_{2}$O$_{3}$ Inclusions by Calcium Treatment During Electroslag Remelting of Stainless Tool Steel

Similar Documents

Control of MgO·Al$_{2}$O$_{3}$ Spinel Inclusions during Protective Gas Electroslag Remelting of Die Steel

Correction to: Simultaneous Modification of Alumina and MgO·Al2O3 Inclusions by Calcium Treatment During Electroslag Remelting of Stainless Tool Steel

Modification of MgO·Al$_{2}$O$_{3}$ spinel inclusions in Al-killed steel by Ca-treatment

Formation and Modification of MgO·Al$_{2}$O$_{3}$-Based Inclusions in Alloy Steels

Effect of Slag on Inclusions During Electroslag Remelting Process of Die Steel

Effect of electroslag remelting on carbides in 8Cr13MoV martensitic stainless steel

Characteristics of inclusions in high-Al steel during electroslag remelting process

Characteristics and Modification of Non-metallic Inclusions in Titanium-Stabilized AISI 409 Ferritic Stainless Steel

Calcium Modification of Spinel Inclusions in Aluminum-Killed Steel: Reaction Steps

Simultaneous Modification of Alumina and MgO·Al$_{2}$O$_{3}$ Inclusions by Calcium Treatment During Electroslag Remelting of Stainless Tool Steel