Creep of Rheocast 7075 Aluminum Alloy at 300 °C
2013 ◽
Vol 372
◽
pp. 288-291
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Keyword(s):
Creep of rheocast 7075-T6 aluminum alloy produced by the Gas Induced Semi-Solid (GISS) process was investigated at temperature of 300 °C and stress range of 20-70 MPa and compared to that of wrought 7075-T651 aluminum alloy. The rheocast 7075-T6 alloy exhibited lower minimum creep rate and longer rupture time than the wrought 7075-T651 alloy. The total rupture strain of the rheocast alloy was shorter than that of the wrought one. According to the power law creep, the stress exponents, n of the rheocast 7075-T6 and the wrought 7075-T651 alloys were 5.9 and 7.9 respectively. Based on the determined n values, the creep deformation of both alloys was possibly controlled by the dislocation glide and climb-controlled mechanism.
2008 ◽
Vol 22
(31n32)
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pp. 5413-5418
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Keyword(s):
Keyword(s):
2016 ◽
Vol 853
◽
pp. 163-167
Keyword(s):
2014 ◽
Vol 45
(11)
◽
pp. 5076-5084
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Keyword(s):