Effect of the Mn/S Mass Ratio on the High Temperature Ductility of the Low Carbon Steel under Low Strain Rate
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摘要: 研究了在低應速率(10-3/m)下錳硫比對低碳鋼高溫塑性的影響,實驗結果表明,不同測試溫度下錳硫比對鋼的高溫塑性的影響不同。按其影響規律,可分為4個溫度區域即:(1)1350~1400℃,錳硫比越高,塑性越差;(2)1000~1350℃,錳硫比對塑性無影響;(3)800~1000℃,錳硫比越高,塑性越好;(4)600~800℃,錳硫比越高,塑性越差,同時還對錳硫比對高溫塑性的影響機理進行了分析。Abstract: The effect of the Mn/S mass ratio on the high temperature ductility of the low carbon steel under low strain rate was researched. The result of the experiments shows that the Mn/S mass ratio has different effect on the high temperature ductility of steel under different temperatures. The effect can be classified into four categories:(1)1 350~1 400℃, the greater the Mn/S mass ratio is, the poorer the ductility is; (2)1 000~1 350℃,the Wn/S mass ratio has no effect on the duchlity; (3)800~1 000℃, the greater the ratio of the Mn versus S is,the better the ductility is; (4)600~800℃, the greater the mass ratio of the Mn versus S is, the poorer the ductility is. The mechanism of the effect of the Mn/S mass ratio on the high-temperature ductility is also analyzed.
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Key words:
- Mn/S mass ratio /
- high temperature ductility /
- low carbon steel
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