超音速激光沉积工艺参数对颗粒沉积凹坑尺寸的影响(英文)  

Effect of the Process Parameters on the Indentation Size of Particle Deposited Using Supersonic Laser Deposition

作　　者：路远航[1] 袁林江[1] 蔡定葆[1] 骆芳[1,2] 

机构地区：[1]浙江工业大学特种装备制造与先进加工技术教育部重点实验室,浙江杭州310014 [2]浙江工业大学之江学院,浙江杭州310024

出　　处：《稀有金属材料与工程》2014年第10期2349-2353,共5页Rare Metal Materials and Engineering

基　　金：National Natural Science Foundation of China(51271170);China International Science and Technology Cooperation Project(2011DFR50540);Major Scientific and Technological Special Key Industrial Project of Zhejiang Province(2012C11001)

摘　　要：利用有限元分析软件ANSYS Multiphysics/LS-DYNA模块,模拟了超音速激光沉积工艺在中碳钢基体上沉积Stellite 6合金颗粒的过程,分析了颗粒尺寸、温度及基体温度对颗粒沉积的变形行为、沉积处凹坑深度、宽度的影响。通过提取沉积处单元体的坐标变化值,获得了颗粒碰撞基体后的凹坑深度和宽度的数值,并通过计算得颗粒能有效沉积的宽深比范围,并对这些数值进行分析和数值拟合。结果表明：颗粒能有效沉积的宽深比值范围在1.3~1.5。Single Stellite 6 particle was selected as research unit, the impacting characteristic of the particles, deposited on medium carbon steel using supersonic laser deposition （SLD） was studied by the finite element method （FEM）, such as the depth and width of the indentation, the temperature and the sizes of impacting particles, and the substrate temperature. Through extracting the coordinate values of the deposition unit, the depth and the width of indentation were obtained after the particle impacted the substrate. Then, the breadth depth ratio was used to analyze the effective range where the particles can be effectively deposited and fitted value. The result shows that the breadth depth ratio range where the particles can be effectively deposited is 1.3-1.5.

关 键 词：超音速激光沉积 宽深比 数值拟合 

分 类 号：TG174.4[金属学及工艺—金属表面处理]