对于金属双极板的微通道水形形成中的弹行为研究
Zonghui Su1,2, Wenlong Xie2,3, Yong Xu2,3
1State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China.
Materials (Basel, Switzerland)
|November 9, 2024
概括
在316L不钢双极板中,用于质子交换膜燃料电池的Springback受形成压力和颗粒大小的影响. 优化这些因素是提高双极板制造精度的关键.
科学领域:
- 材料科学 材料科学 材料科学
- 机械工程 机械工程
- 能源技术 能源技术 能源技术
背景情况:
- 双极板是质子交换膜燃料电池 (PEMFC) 中的关键组件.
- 双极板制造中的小型化和精度要求强调了在成型过程中控制弹的重要性.
- 316L不钢是双极板的常见材料,但它的弹回流行为需要仔细研究.
研究的目的:
- 为了研究316L不钢双极板的水性成型过程.
- 分析形成压力和粒度大小对这些板块弹回流行为的影响.
- 为提高金属双极板的成型质量提供见解.
主要方法:
- 采用有限元法 (FEM) 建模来模拟水合成形过程.
- 根据实验数据验证了FEM模型的配置和厚度分布.
- 进行了参数研究,以评估形成压力和颗粒大小对弹背的影响.
主要成果:
- 春的行为表现出一种复杂的,与形成压力的非单调关系.
- 形成压力显著影响应力和应变分布,改变弹回形从正常到"M"形状.
- 增加的颗粒大小导致由于产力弹性比例较低而导致弹性回弹减少,在60.7μm颗粒大小观察到的最大弹性回弹为3.1μm.
结论:
- 形成压力和粒度大小是影响316L不钢双极板反弹的关键参数.
- 了解这些关系可以更好地控制燃料电池组件的维度准确性.
- 这些发现为优化具有多种流通道设计的精密双极板的制造提供了宝贵的指导.
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