ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
The thixoforging process in which magazine plates of AZ91D magnesium alloy werethixoforged in semi-solid state using semi-solid billets prepared by common SIMA method and newSIMA method was investigated. The results show that the pressure has a great influence on thesemi-solid billet’s ability to fill die’s cavity. When the pressure is 500KN, the semi-solid billet can’tfill the die’s cavity completely. When the pressure is 2000KN, the semi-solid billet can fill the die’scavity completely. Room temperature mechanical properties, such as yield strength of 201.4MPa,ultimate tensile strength of 321.8MPa and elongation of 15.3%, can be obtained successfully whenthe technological parameters, including pressure of 200KN, die preheating temperature of 723K,holding for 20min at 818K, are satisfied. Comparing with common SIMA, mechanical properties ofroom temperature and high temperature at 373K[removed info]are enhanced heavily
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/22/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.116-117.267.pdf
