Hardness, tensile strength, breaking elongation ratio and aging property of samples were tested and surface of sample after aging was represented by SEM.
对试样进行了硬度、拉伸强度、断裂伸长率、热老化等性能试验；对老化后的试样表面进行了SEM表征。
It is shown that the mechanical properties of annealed sample of 2224 aluminum alloy are improved by the combination of solid solution and aging treatment after ECAP, the size of grain is refined.
结果表明，退火态2224铝合金经e CAP挤压后，进行固溶和时效处理，明显提高了合金的力学性能，细化了合金的晶粒。
After the stated conditions of aging, impact test, the sample doesn't crack or brittle fracture.
光纤槽道能承受规定条件下的老化、冲击试验。试验后，试样不产生裂纹或脆断；
After the stated conditions of aging, impact test, the sample doesn't crack or brittle fracture.
光纤槽道能承受规定条件下的老化、冲击试验。试验后，试样不产生裂纹或脆断；
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