Thermomechanically Induced Precipitation in High-Performance Ferritic (HiperFer) Stainless Steels
Thermomechanically Induced Precipitation in High-Performance Ferritic (HiperFer) Stainless Steels
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DOI：
10.3390/app10165713
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发表时间：
2020-08-01
影响因子：
2.7
通讯作者：
Krupp, Ulrich
中科院分区：
文献类型：
--
作者：
Fan, Xiuru;Kuhn, Bernd;Krupp, Ulrich
锻造高温部件，如涡轮机、压缩机和泵的螺栓、螺母和叶片，具有更高的抗疲劳、蠕变和腐蚀性;最终，工具应用于金属热成型技术，如冲压和深冲。新型高性能全铁素体（HiperFer）不锈钢的开发是为了满足下一代热能转换设备的需求，并具有独特的抗疲劳，蠕变和腐蚀的平衡组合。典型的传统的多步加工和热处理，以实现该合金的最佳机械性能。本文概述了热机械加工的可行性，以目标为导向的改变这种新型钢的机械性能，应用经济更有效的方法。详细研究了热处理参数变化对合金显微组织和力学性能的影响。此外，还采取了初步优化步骤。
Featured Application Forged high-temperature components such as bolts, nuts and blades for turbines, compressors, and pumps with increased resistance to fatigue, creep, and corrosion; eventually, tools applied in techniques for thermoforming of metals like stamping and deep drawing. Novel high-performance fully ferritic (HiperFer) stainless steels were developed to meet the demands of next-generation thermal power-conversion equipment and to feature a uniquely balanced combination of resistance to fatigue, creep, and corrosion. Typical conventional multistep processing and heat treatment were applied to achieve optimized mechanical properties for this alloy. This paper outlines the feasibility of thermomechanical processing for goal-oriented alteration of the mechanical properties of this new type of steel, applying an economically more efficient approach. The impact of treatment parameter variation on alloy microstructure and the resulting mechanical properties were investigated in detail. Furthermore, initial optimization steps were undertaken.