Effect of high magnetic field on the pearlite transformation of Al-containing steel

ABSTRACT

Comparative studies were carried out on the effect of high magnetic field on the pearlite transformation of Al-containing high carbon steels under the furnace slow cooling condition. For 1.37Al-bearing high carbon steel, the amount of pearlite was only 6 ± 3 vol.-% without magnetic field, whereas full pearlite was obtained under a 12-T high magnetic field. For free-Al high carbon steel, no pearlite transformation occurred, whereas lots of bainite were formed under a 12-T high magnetic field. In addition, the interlamellar spacing of pearlite increased from 100 ± 7 to 112 ± 18 nm by the application of a 12-T magnetic field. It has been proved that the pearlite transformation of high carbon steel was promoted by high magnetic field and by the addition of aluminium.

This is part of a thematic issue on Pearlitic Steel Wires.

KEYWORDS:

• Steels
• phase transformation
• pearlite
• slow cooling
• high magnetic field

Disclosure statement

No potential conflict of interest was reported by the authors.

ORCID

Guohong Zhang http://orcid.org/0000-0002-5233-8121

Additional information

Funding

The authors gratefully acknowledge the financial support received from the Natural Science Foundation of Hubei Province under [grant number 2016CFA004 and 2016CFB462] and the National Natural Science Foundation of China (NSFC) under [grant numbers U1532268 and 11404249].