The University of Southampton
University of Southampton Institutional Repository

Influence of Mn and Ni on the microstructure and toughness of C-Mn-Ni weld metals

Influence of Mn and Ni on the microstructure and toughness of C-Mn-Ni weld metals
Influence of Mn and Ni on the microstructure and toughness of C-Mn-Ni weld metals
A systematic investigation has been carried out to study the microstructure and toughness of C-Mn-Ni low-alloy shielded metal arc (SMA) weld metals. The manganese and nickel concentrations were progressively changed to determine their influence on weld microstructure and mechanical properties as well as to identify their interactions. The results obtained showed that manganese and nickel have considerable effect on the weld metal microstructure, and both Mn and Ni affect the microstructure in a similar way, i.e., promoting acicular ferrite at the expense of proeutectoid ferrite (grain boundary ferrite and ferrite sideplates). The results in the top bead also showed that there is an optimum composition range that produces an optimum balance of weld metal microstructures. For optimum toughness, a combination of 0.6-1.4% manganese and 1.0-3.7% nickel is suggested. Additions beyond this limit promotes the formation of martensite and other microstructural features, which may be detrimental to weld metal toughness.
0043-2296
183s-196s
Zhang, Z.
fd968521-9e43-4b50-b67e-3b6dfa095d13
Farrar, R.A.
1147a2de-e1ac-4dea-80a3-099983fc8ba9
Zhang, Z.
fd968521-9e43-4b50-b67e-3b6dfa095d13
Farrar, R.A.
1147a2de-e1ac-4dea-80a3-099983fc8ba9

Zhang, Z. and Farrar, R.A. (1997) Influence of Mn and Ni on the microstructure and toughness of C-Mn-Ni weld metals. Welding Research Supplement, 76 (5), 183s-196s.

Record type: Article

Abstract

A systematic investigation has been carried out to study the microstructure and toughness of C-Mn-Ni low-alloy shielded metal arc (SMA) weld metals. The manganese and nickel concentrations were progressively changed to determine their influence on weld microstructure and mechanical properties as well as to identify their interactions. The results obtained showed that manganese and nickel have considerable effect on the weld metal microstructure, and both Mn and Ni affect the microstructure in a similar way, i.e., promoting acicular ferrite at the expense of proeutectoid ferrite (grain boundary ferrite and ferrite sideplates). The results in the top bead also showed that there is an optimum composition range that produces an optimum balance of weld metal microstructures. For optimum toughness, a combination of 0.6-1.4% manganese and 1.0-3.7% nickel is suggested. Additions beyond this limit promotes the formation of martensite and other microstructural features, which may be detrimental to weld metal toughness.

This record has no associated files available for download.

More information

Published date: 1997

Identifiers

Local EPrints ID: 21105
URI: http://eprints.soton.ac.uk/id/eprint/21105
ISSN: 0043-2296
PURE UUID: 26876bb9-3164-4a40-a275-64ab7b7b214e

Catalogue record

Date deposited: 01 Nov 2006
Last modified: 17 Oct 2022 17:32

Export record

Contributors

Author: Z. Zhang
Author: R.A. Farrar

Download statistics

Downloads from ePrints over the past year. Other digital versions may also be available to download e.g. from the publisher's website.

View more statistics

Atom RSS 1.0 RSS 2.0

Contact ePrints Soton: eprints@soton.ac.uk

ePrints Soton supports OAI 2.0 with a base URL of http://eprints.soton.ac.uk/cgi/oai2

This repository has been built using EPrints software, developed at the University of Southampton, but available to everyone to use.

We use cookies to ensure that we give you the best experience on our website. If you continue without changing your settings, we will assume that you are happy to receive cookies on the University of Southampton website.

×