On the shear cracking of welded Al-Zn-Mg alloy thick plate:Studies on the stress corrosion cracking of Al-Zn-Mg alloy (3rd report)
スポンサーリンク
概要
- 論文の詳細を見る
These studies were made on the shear cracking of aged Al-Zn-Mg alloy plates and on the stress corrosion cracking of step aged alloy sheets.Plates of aged welded Al-Zn-Mg alloys such as of Al-4.5%Zn-1.2%Mg alloy and Al-4.2%Zn-2.3%Mg alloy were cut with shearing machine. After the pieces of the alloys were immersed in 5%NaCl solution for one month, the shear cracks were observed on the shearing surface. Furthermore, stress corrosion cracking test was performed for stepped aged Al-4.5%Zn-3%Mg alloy.The results obtained were summarized as follows.(1) The shear cracking would be a kind of stress corrosion cracking due to the residual stress superimposed on the alloys at shearing. The sensitivity to shear cracks corresponded well with the test results of stress corrosion cracking.(2) Shear cracks were not observed on the heat-affected zone of weld.(3) When the pre-aged alloys were further aged at a temperature higher than that of pre-ageing, they became more resistant to the stress corrosion cracking.(4) Step-ageing treatment improved the resistance to stress corrosion cracking of Al-Zn-Mg alloys.
- 一般社団法人 軽金属学会の論文
一般社団法人 軽金属学会 | 論文
- Mechanical and wear properties of SiC whisker/ADC12 aluminum alloy composites fabricated by die casting.
- Joining of aluminum and ceramics.
- タイトル無し
- Undercooling and solidification behavior of fluid clumps of second-poured melt of hypereutectic Al-Si alloy in Duplex Casting process.
- Change in apparent viscosity of stirred slurry during production of semi-solid hypereutectic Al-Si alloy by slurry-melt mixing process.