The effect of up to 0.18% microadditions of titanium on the structure and mechanical properties of sheet low-carbon (0.07 – 0.09% C) steels with different alloying systems (C – Mn – Ti, C – Mn – V – Ti,C – Mn – Nb – Ti) is studied. The phase composition and the structure of the steels are determined. The specimens are tested for static tension and impact toughness. The content of titanium Ti_cr above which fine particles of TiC carbide precipitate in the structure and elevate the strength properties at simultaneous decrease in the ductility and toughness of the steels is determined.

中文翻译：

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低碳低合金钢与钛的微合金化

高达 0.18% 微量添加的钛对具有不同合金系统（C – Mn – Ti、C – Mn – V – Ti、C – Mn – Nb – Ti) 进行了研究。确定钢的相组成和组织。测试样品的静态张力和冲击韧性。确定了钛 Ti _cr的含量，在该含量之上，TiC 碳化物细颗粒在组织中析出并提高强度性能，同时降低钢的延展性和韧性。