送粉式宽带激光搭接熔覆F305粉组织和性能的研究  

Investigation on Microstructure and Properties of Broad-beam Laser Overlapping Cladding F305 Formed by Powder Feeding Method

作　　者：张庆茂[1] 刘喜明[2] 孙宁[3] 关振中[4] 

机构地区：[1]清华大学机械系激光加工中心,北京100084 [2]吉林工学院,吉林长春130012 [3]解放军军需大学,吉林长春130062 [4]中科院长春光学精密机械研究所,吉林长春130012

出　　处：《金属热处理》2001年第4期13-18,共6页Heat Treatment of Metals

基　　金：吉林省工业发展基金! ( 19980 10 1 0 8)

摘　　要：研究了搭接条件下激光热有效利用率的计算方法。分析了搭接熔覆时的对流机制和显微组织特征 ,并利用该对流机制解释了不同区域的组织、成分的变化 ,测量了熔覆层的力学性能。WT5”BZ]This paper deals with the calculating method for the effective heat utilization of laser during the broad beam overlapping,the microstructure features of overlapping cladding layer and the convection mechanism,which was used to explain the variation of the microstructure and the distribution of alloys in different areas.The mechanical properties of the overlapping clad layer are measured.

关 键 词：搭接 激光热有效利用率 对流机制 力学性能 F305粉 奥贝球铁 激光熔覆 

分 类 号：TG156.99[金属学及工艺—热处理]