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首页> 外文期刊>Steel Research International >Effect of Ultra Fast Cooling on the Alloy Cost Reduction of the X80 Pipeline Steel
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Effect of Ultra Fast Cooling on the Alloy Cost Reduction of the X80 Pipeline Steel

机译：超快速冷却对X80管线钢合金成本降低的影响

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摘要

The microstructures and mechanical properties of X80 pipeline steels produced by both novel ultra fast cooling and conventional-accelerated continuous cooling modes are investigated. Results showed that different levels of Mo addition had a remarkable effect on the microstructures and mechanical properties of the investigated pipeline steels. The proeutectoid ferrite and pearlite formation is inhibited in the high-Mo steel and acicular ferrite is obtained over a wide range of cooling rates, whereas the dominant acicular ferrite microstructure can only be obtained when the cooling rates reach up to 5 C s(-1). Very similar microstructures and mechanical properties are obtained in the low-Mo steel produced with ultra fast cooling and in the high-Mo steel produced by the conventional-accelerated continuous cooling. It was proved by simulation and industrial trials that high-strength low-alloy steels such as pipeline steels, can be produced using the novel ultra fast cooling which also reduce alloy cost.
机译：研究了通过新颖的超快冷却和常规加速连续冷却方式生产的X80管线钢的组织和力学性能。结果表明，不同含量的Mo对所研究的管线钢的显微组织和力学性能有显着影响。高钼钢抑制了共析铁素体和珠光体的形成，并且在较宽的冷却速率范围内都获得了针状铁素体，而只有当冷却速率达到5 C s（-1）时，才能获得主要的针状铁素体组织。 ）。在通过超快速冷却生产的低钼钢和通过常规加速连续冷却生产的高钼钢中，获得了非常相似的组织和力学性能。通过仿真和工业试验证明，可以使用新型超快速冷却技术生产高强度低合金钢，例如管线钢，这也降低了合金成本。

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