Executive Summary : | Objective: To synthesize RE-Te added Magnesium alloys and secondary processing of these with an aim to achieve strength ~180 to 200 MPa, and creep resistance up to 250oC and have controlled corrosion resistance. To develop process for synthesizing Mg-Re-Te-ceramic particles composites to get improved corrosion resistance and modulus (~80 to 85 MPa) and strength~ 200-250 MPa. Finally secondary processing of these composites for further improvement in strength Magnesium alloy-closed cell foams through stir casting technique to get foam of density 0.15 gm/cc- 0.35 g, plateau strength of 2 to 10 MPa and Energy absorption as high as 12 MJ/m3 and then development of foam based components like crash boxes, bumpers, sandwich panels, Magnesium alloy plates for orthopedic implants (2 to 4 mm thickness and 5 to 10 mm width Magnesium alloy/composite based components: steering wheel, engine casing, gear case, mobile cover and EMI shielding box (light weight, improved crash worthiness, sound and vibration controlled). Summary: The main moto of the proposal is to make magnesium alloys using flux assisted melting route under inert atmosphere to avoid pollution from SF6 and CO2 used generally for melting of this alloy. Then the alloys would be used for making composites and foams for various applications. To improve its strength, corrosion and creep resistance attempts will be made to make newer alloys with addition of RE and TE and finally demonstration of the products developed using these developed materials. The major objectives are as follows: 1. To synthesize RE-Te added Magnesium alloys and secondary processing of these with an aim to achieve strength ~180 to 200 MPa, and creep resistance up to 250 oC and have controlled corrosion resistance , 2. To develop process for synthesizing Mg-Re-Te-ceramic particles composites to get improved corrosion resistance and modulus (~80 to 85 MPa) and strength~ 200-250 MPa. Finally secondary processing of these composites for further improvement in strength.3. Magnesium alloy-closed cell foams through stir casting technique to get foam of density 0.15 gm/cc- 0.35 g, plateau strength of 2 to 10 MPa and Energy absorption as high as 12 MJ/m3 and then development of foam based components like crash boxes, bumpers, sandwich panels. 4. Magnesium alloy plates for orthopedic implants (2 to 4 mm thickness and 5 to 10 mm width. 5. Magnesium alloy/composite based components: steering wheel, engine casing, gear case, mobile cover and EMI shielding box (light weight, improved crash worthiness, sound and vibration controlled). |
