Adding nano ferro-titanium can make Mn transition preferably, get thinner ferrite grains, the acicular ferrite content and impact ductility of deposited metal are increased.
纳米钛铁的加入使Mn的过渡较好,铁素体晶粒细化,焊缝中针状铁素体含量增加,熔敷金属冲击韧性提高。
参考来源 - 合金颗粒度对碱性电焊条性能影响研究The results show that impact ductility increased by 70%; The strength of extension increased by 83%;And the extensibility increased by 132%.
结果表明，压入法取得了成效：合金的冲击韧性达到了6.8J／cm~(-2)，提高了70％；抗拉强度σ_b最高达到189.2MPa，与没有进行变质处理和氩气精炼相比，提高了83％；而伸长率提高了125％。
参考来源 - 提高汽车轮毂用铝合金的冲击韧性·2,447,543篇论文数据，部分数据来源于NoteExpress
Room temperature impact ductility decreased with the aging time increasing.
室温冲击韧度随时效时间的延长整体下降，为韧性断裂；
After annealing coarse grain structure was observed and the impact ductility and the elongation of materials increased.
退火以后，发现材料的晶粒长大，材料的冲击韧性与延性提高。
The results show that, with the decrease of finishing temperature, the low-temperature impact ductility decreases gradually.
结果表明：随着终轧温度的降低，角钢的冲击韧度逐渐降低；
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