Mg-Si-Sn series magnesium alloy and heat treatment process for deteriorate Chinese character shaped eutectic Mg2Si phase therein
A magnesium alloy, mg-si-sn technology, applied in the field of heat treatment technology, can solve the problems of insufficient heat resistance and poor comprehensive mechanical properties of Sn-enhanced magnesium alloys, so as to overcome the lack of heat resistance, improve production efficiency, and improve high temperature Effects of Tensile and Creep Properties
Inactive Publication Date: 2008-04-16
HARBIN ENG UNIV
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Abstract
The invention proposes an Mg-Si-Sn series magnesium alloy and the heat treatment technics for changing the quality of eutectic crystal Mg2Si phase with a Chinese character shape. The preferred compositions and weight percentage of the Mg-Si-Sn series magnesium alloy are as follows: 3 percent of Sil, Sn of 1 percent to 3 percent of Sn and remaining Mg. The Mg-Si-Sn series magnesium alloy adopts industrial pure magnesium ingot, industrial polyeristalline silicon powder and pure tin ingot to melt and cast. The Mg-Si-Sn series magnesium alloy casting member which is melted according to ingredient formulation is placed into box type resistance furnace with protective atmosphere for preserving heat, in which the range of temperature is from 490 DEG C to 550 DEG C and the time of heat preservation is from 1 hours to 4 hours; and then the casting member is quickly taken out and put into water for quenching. The invention opens a novel path for developing cheap heat resistant magnesium alloy. The Mg-Si-Sn series magnesium alloy is thought as one of the cheap heat resistant magnesium alloys with the most developing potential and can be used to produce parts such as automobile engine tank cover, crankcase, gear box and the like.
Technology Topic
Magnesium alloyHeat treated +6
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Property | Measurement | Unit |
Particle size | 0.5 ~ 2.0 | mm |
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