Weldability of the MSRB Magnesium Alloy

Abstract:

Article Preview

This work, in combination with industrial tests of casting welding, shows that the causes of high-temperature brittleness are the partial tears of the structure and the hot cracks of both the castings, as well as the welded and padded joints. Such phenomena should be treated as irreversible failures caused by the process of crystallization that is in the area of co-existence of the solid and liquid structural constituent. Nil-strength temperature (NST), nil-ductility temperature (NDT) and ductility recovery temperature (DRT) were determined using Gleeble 3800. Obtained results enabled the defining of brittle temperature range of MSR-B magnesium alloy. The assessment of the resistance to hot fractures was conducted on the basis of the transvarestriant trial. The transvarestriant trial involves changing of strain during welding. It was stated that the range of the high-temperature brittleness is very broad, which significantly limits the application of the welding techniques to join or repair elements made of the MSRB alloy. brittleness is caused mainly by metallurgical factors, i.e. precipitation of intermetallic phases from the solid solution.

Info:

Periodical:

Solid State Phenomena (Volume 176)

Edited by:

Agnieszka Botor-Probierz and Andrzej Kiełbus

Pages:

107-118

DOI:

10.4028/www.scientific.net/SSP.176.107

Citation:

J. Adamiec "Weldability of the MSRB Magnesium Alloy", Solid State Phenomena, Vol. 176, pp. 107-118, 2011

Online since:

June 2011

Authors:

Export:

Price:

$35.00

In order to see related information, you need to Login.

In order to see related information, you need to Login.