Title

Microstructures And Tensile Properties Of Fe-40Al Intermetallic With High Boron Content

Keywords

Boron; Iron aluminide; Microradiography; Tensile elongation

Abstract

The effects of B addition up to 0.4 wt% (i.e., 1.61 at%) to Fe-40A1 alloy on microstructures and tensile properties were investigated. The vacancy-annealed specimens following casting and extrusion were examined by optical and scanning electron microscopy and thermal neutron-induced microradiography. The addition of a large amount of B resulted in grain refinement and changed the fracture mode from intergranular to transgranular to increase the tensile elongation. Especially, the alloy containing 0.3wt% B exhibited the elongation of 16.4% under the strain rate of 1×10 0s-1 at room temperature. The increase in elongation with increasing strain rate was discussed in terms of suppression of hydrogen embrittlement.

Publication Date

1-1-2006

Publication Title

Materials Science Forum

Volume

510-511

Number of Pages

350-353

Document Type

Article; Proceedings Paper

Personal Identifier

scopus

DOI Link

https://doi.org/10.4028/0-87849-995-4.350

Socpus ID

35748943228 (Scopus)

Source API URL

https://api.elsevier.com/content/abstract/scopus_id/35748943228

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