Numerical simulation and experimental validation of microstructure evolution during the upsetting process of a large size martensitic stainless steel forging

IF 2.6 3区材料科学 Q2 ENGINEERING, MANUFACTURING

International Journal of Material Forming Pub Date : 2024-06-18 DOI:10.1007/s12289-024-01840-0

Simin Dourandish, Henri Champliaud, Jean-Benoit Morin, Mohammad Jahazi

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Abstract

The microstructure evolution, plastic deformation, and damage severity during the open die hot forging of a martensitic stainless steel were investigated using finite element (FE) simulation. A microstructure evolution model was developed and combined with a visco-elastoplastic model to predict the strain, the strain rate, and the temperature distribution, as well as the volume fraction and the size of dynamically recrystallized grains over the entire volume of an industrial size forging. The propensity to damage during hot forging was also evaluated using the Cockcroft & Latham model. The three models were implemented in the FE code and the results analyzed in terms of microstructure inhomogeneity and stress levels in different regions of the forging. A good agreement was obtained between the predicted and the experimental results, demonstrating that the simulation provided a realistic representation of the forging process at the industrial scale.

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大尺寸马氏体不锈钢锻件镦锻过程中显微组织演变的数值模拟和实验验证

利用有限元（FE）模拟研究了马氏体不锈钢开模热锻过程中的微观结构演变、塑性变形和损伤严重程度。开发了微观结构演变模型，并将其与粘弹性-延塑性模型相结合，以预测应变、应变率和温度分布，以及工业尺寸锻件整个体积中动态再结晶晶粒的体积分数和尺寸。此外，还使用 Cockcroft & Latham 模型评估了热锻过程中的损伤倾向。这三个模型都已在有限元代码中实现，并根据锻件不同区域的微观结构不均匀性和应力水平对结果进行了分析。预测结果和实验结果之间取得了良好的一致性，这表明模拟真实地再现了工业规模的锻造过程。

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来源期刊

International Journal of Material Forming ENGINEERING, MANUFACTURING-MATERIALS SCIENCE, MULTIDISCIPLINARY

CiteScore

5.10

自引率

4.20%

发文量

审稿时长

>12 weeks

期刊介绍： The Journal publishes and disseminates original research in the field of material forming. The research should constitute major achievements in the understanding, modeling or simulation of material forming processes. In this respect ‘forming’ implies a deliberate deformation of material. The journal establishes a platform of communication between engineers and scientists, covering all forming processes, including sheet forming, bulk forming, powder forming, forming in near-melt conditions (injection moulding, thixoforming, film blowing etc.), micro-forming, hydro-forming, thermo-forming, incremental forming etc. Other manufacturing technologies like machining and cutting can be included if the focus of the work is on plastic deformations. All materials (metals, ceramics, polymers, composites, glass, wood, fibre reinforced materials, materials in food processing, biomaterials, nano-materials, shape memory alloys etc.) and approaches (micro-macro modelling, thermo-mechanical modelling, numerical simulation including new and advanced numerical strategies, experimental analysis, inverse analysis, model identification, optimization, design and control of forming tools and machines, wear and friction, mechanical behavior and formability of materials etc.) are concerned.