Mechanical Investigations on Composite Peened Aluminium
Mechanical Investigations on Composite Peened Aluminium
复制标题
复合喷丸铝的机械研究
DOI：
10.1007/978-981-15-0054-1_2
复制
发表时间：
2020
期刊：
影响因子：
--
通讯作者：
Weidenmann
中科院分区：
文献类型：
--
作者：
Weidenmann
复合喷丸描述了一种基于微喷丸工艺的新颖方法。通过复合喷丸，可以将颗粒引入金属基材的近表面区域。随着距表面距离的增加，增强相的比例逐渐减小。这些所谓的功能梯度金属基复合材料 (FGMMC) 具有多种不同的特性，例如材料组合、颗粒密度、颗粒梯度和颗粒尺寸，以及由此产生的广泛性能。通过这种方法生产的复合材料有望在轻质、耐磨和循环应力结构部件方面具有很高的应用潜力。选择EN AW-1050作为基体材料，选择氧化铝作为磨料和增强材料。还研究了其他磨料，例如碳化硅和碳化钨。通过改变温度和压力等工艺参数，评估对颗粒密度和颗粒梯度的影响。在高同源温度下可以观察到高达 30 µm 的渗透深度。喷丸过程可能会导致表面附近出现开放结构，随后对样品进行深滚压。此外，该工艺还降低了表面粗糙度。随后的机械表征集中于弯曲测试。与基材相比，可以观察到复合材料的弯曲强度有所增加。
Composite peening describes a novel approach based on the micro peening process. By composite peening, particles can be introduced into near-surface regions of metallic base materials. The proportion of the reinforcement phase decreases gradually with increasing distance to the surface. These so-called Functionally Graded Metal Matrix Composites (FGMMC) are characterised by a multitude of different characteristics, such as material combination, particle density, particle gradient and particle size, and a resulting broad range of properties. The composite material produced by this method promises a high application potential for lightweight, wear resistant and cyclically stressed structural components.EN AW–1050 was selected as matrix material and alumina as abrasive respectively reinforcement material. Additional abrasives such as silicon carbide and tungsten carbide were also investigated. By varying the process parameters, such as temperature and pressure, the influence on the particle density and the particle gradient was evaluated. Penetration depths up to 30 µm could be observed at high homologous temperatures. The peening process might cause open structures near the surface, the sample were subsequently deep rolled. In addition, this process reduces the surface roughness.Ensuing mechanical characterisation focused on bending tests. An increase in the flexural strength of the composite material compared to the base material could be observed.
复合喷丸——梯度增强铝基复合材料的新型加工技术
DOI：
10.4028/www.scientific.net/kem.742.137
发表时间：
2017
期刊：
Key Engineering Materials
影响因子：
--
作者：
Klumpp;Weidenmann
通讯作者：
Weidenmann
使用微喷砂进行机械表面处理*
DOI：
10.3139/105.110252
发表时间：
2015
期刊：
HTM Journal of Heat Treatment and Materials
影响因子：
--
作者：
Weingärtner;Hoffmeister;Schulze
通讯作者：
Schulze
功能梯度金属基复合材料生产复合喷丸过程中工艺参数对增强相渗透深度的影响
DOI：
10.4028/www.scientific.net/kem.809.73
发表时间：
2019
期刊：
Key Engineering Materials
影响因子：
--
作者：
Weidenmann
通讯作者：
Weidenmann