Microstructure and Mechanical Behaviors of the New LAZ1151 Mg-Li Alloy

Abstract:

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This research studies a brand new Magnesium Lithium Alloy, LAZ1151, with trace Sc additions. The mechanical properties and microstructures of the as-cast and alloys after three and six month aging were observed and analyzed. Microstructure and XRD confirms the existence of α phase precipitates (Mg rich) in both as-cast and aging specimens of the alloy. Grain growth was observed in the alloy after room temperature aging. The tensile strength of the as-cast LAZ1151 is 147 MPa; the value is decreased to 135 MPa after six month aging, showing typical room temperature softening. Strengthening via the use of cold rolling was tried; a maximum tensile strength of 180 MPa was achieved after 90% rolling reduction, which is mainly due to strain hardening.

Info:

Periodical:

Advanced Materials Research (Volumes 239-242)

Edited by:

Zhong Cao, Xueqiang Cao, Lixian Sun, Yinghe He

Pages:

1326-1330

DOI:

10.4028/www.scientific.net/AMR.239-242.1326

Citation:

C. W. Cheng et al., "Microstructure and Mechanical Behaviors of the New LAZ1151 Mg-Li Alloy", Advanced Materials Research, Vols. 239-242, pp. 1326-1330, 2011

Online since:

May 2011

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Price:

$35.00

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