加热温度对掺杂钨丝再结晶组织及性能的影响  

Effect of Heating Tempetrureand Atmosphere on Mechanical Properties and Recrystallzation Microstructure of Doped Tungsten Wire

作　　者：张存信[1] 张树格 田华[1] 林勇[1] 

机构地区：[1]中国兵器工业第五二研究所,内蒙古包头014034 [2]南京电光源材料研究所,江苏南京025027

出　　处：《热处理技术与装备》2007年第1期15-17,31,共4页Heat Treatment Technology and Equipment

摘　　要：研究了在1700-1900℃之间不同温度及真空、分解氨气氛条件下加热对掺杂钨丝再结晶组织形态的影响。结果表明,掺杂钨丝在含有镍、铁和锰的气氛下,由于这些合金元素渗入掺杂钨丝的表层中,使钨丝表层的再结晶温度大幅度下降,以致掺杂钨丝的表层形成了等轴晶的再结晶组织,这使掺杂钨丝严重脆化,其力学性能也大幅度降低。In this paper, the effect of different heating temperature and atmospheres on the mechanical properties and recrystallization microstructure of a kind of doped tungsten wire was investigated. The experimental results show that, the recrystallization temperature of the surface layer of doped tungsten wires was dropped greatly, because of Ni, Fe and Mn elements being permeated, and the large equiaxel grains were found in the surface layer of tungsten wires.

关 键 词：掺杂钨丝 再结晶 热处理 显微组织 

分 类 号：TG113[金属学及工艺—物理冶金] TG146.411[金属学及工艺—金属学]