机械性质的比较分析:传统与传统. 增材制造用于316L不钢的增材制造
Constantin Alex Sumanariu1, Cătălin Gheorghe Amza1, Florin Baciu2
1Department of Quality Engineering and Industrial Technologies, Faculty of Industrial Engineering and Robotics, National University of Science and Technology POLITEHNICA Bucharest, 060042 București, Romania.
Materials (Basel, Switzerland)
|October 16, 2024
概括
增材制造 (AM) 不钢316L比传统方法具有更高的抗拉强度,但柔性较低. 造机样本呈现出更细的颗粒,而造机具有更高的可塑性,因此需要对造机部件的后处理进行进一步的研究.
科学领域:
- 材料科学 材料科学 材料科学
- 金工业是金工业的一个方面.
- 制造业 工程 制造工程
背景情况:
- 由于其机械性能和耐腐蚀性,316L不钢被广泛使用.
- 增材制造 (AM) 为金属元件提供了新的制造途径.
- 将AM与传统方法进行比较对于了解材料性能至关重要.
研究的目的:
- 为了比较AM生产的316L不钢的抗拉强度和微结构特性,与传统制造相比.
- 评估AM 316L不钢的强度和可塑性之间的权衡.
- 确定316L不钢的增补工艺中可能需要改进的领域.
主要方法:
- 使用增材制造和传统技术 (造,造) 制造不钢316L样品.
- 拉力测试以确定最终拉力强度 (UTS),屈服强度和破裂时的延伸.
- 扫描电子显微镜 (SEM) 用于微观结构分析,专注于粒径.
主要成果:
- 与传统样品相比,AM不钢316L实现了更高的UTS (650MPa) 和性强度 (550MPa) (580MPa UTS,450MPa性强度).
- 传统样品的柔性性 (35%的延长) 比AM样品 (20%的延长) 更高.
- 在AM样本中,精细的粒度结构 (1-5μm) 与传统生产样本中较大的粒度 (10-20μm) 相比.
结论:
- 增材制造在316L不钢中产生更高的强度,而造等传统方法提供了更高的柔性.
- 在AM中精制的颗粒结构有助于增强强度,但降低柔性.
- 后加工技术,如热静态压力 (HIP) 和热处理,需要进行研究,以提高AM不钢316L的柔性和机械性能.
相关概念视频
01:18Mechanical Characteristics of Steel
400
The mechanical characteristics of steel are assessed through various tests that evaluate its strength, toughness, and flexibility. These tests include tension, torsion, impact, bending, and hardness assessments, each providing crucial information about steel's suitability for specific applications.
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
The tension test is fundamental for determining tensile strength. In this test, a steel specimen is stretched using a gripping device until it breaks. The data collected during this test are used...
400
01:08Bending of Members Made of Several Materials
140
In analyzing a structural member composed of two different materials with identical cross-sectional areas, it is crucial to understand how their distinct elastic properties affect the member's response under load. The analysis involves assessing stress and strain distributions using the transformed section concept, which accounts for variations in material properties.
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
Hooke's Law determines stress in each material, stating that stress is proportional to strain but varies due to each...
140
01:26Hooke's Law
351
Hooke's law, a pivotal principle in material science, establishes that the strain a material undergoes is directly proportional to the applied stress, defined by a factor called the modulus of elasticity or Young's modulus.
351