They have high strength and low ductility relatively after aging.
时效后的强度高，塑性相对较低。
The austenite in the steel after aging is mainly reverted austenite.
时效态钢中奥氏体主要为逆转变奥氏体。
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。
With decreasing acid concentration in the mother liquid, the hydrolysis products of antimony pentachloride transforms from amorphous to crystalline after aging of 5d.
随着水解母液酸度的降低，五氯化锑溶液水解产物陈化五天后的晶型由非晶态向晶态变化；
The mechanical properties of gross rubber before and after aging were detected when mixed hexaphenyl cyclotrisilazane with methyl vinyl silicone rubber in different ratio.
将六苯基环三硅氮烷与甲基乙烯基硅橡胶按照不同配比共混得到混炼胶，测定老化前后混炼胶的力学性能。
The results showed that the steel cord with high copper content possessed better initial adhesion property to rubber, but the adhesion property after aging decreased significantly;
结果表明，高铜镀层钢丝帘线与橡胶的初始粘合性能较好，但其老化后粘合性能下降明显；
The temperature resistance of 10 kinds of domestic and overseas fluid loss additives is systematically researched by use of DTA and inherent viscosity of additives in aqueous solution after aging.
采用差热分析法和水溶液密封老化后的特性粘度法，全面系统地研究了国内外十种降滤失剂的耐温性。
After aging treatments, the strength coefficient reached 72.5%.
经过时效处理接头强度系数提高到72.5%。
After aging test, its retention rate of mechanical properties is higher than that of the reference group.
发现这种复合弹性材料在热氧化后力学性能的保持率比参照样品有明显的提高。
After aging treatment, the strength and elongation of welded joints under different parameters increased and their mechanical properties were similar.
对焊接接头进行人工时效后，不同热输入条件下得到的焊接接头的强度和延伸率都有明显提高。
After aging treatment, the strength and elongation of welded joints under different parameters increased and their mechanical properties were similar.
对焊接接头进行人工时效后，不同热输入条件下得到的焊接接头的强度和延伸率都有明显提高。
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