摘要
通过爆炸焊接过程薄带组宏观研究,得出非晶薄带组装填密度与所需要冲击压力的关系,然后计入冲击压缩引起温升,进而得出有坚实物理背景的非晶薄带装填密度与爆炸复合温升关系。开展计算,得出30μm厚Fe78B13Si9非晶薄带爆炸焊接温升与装填密度关系曲线。结果表明,装填密实度87.5%,可避免温升过高;以前人所建立的模型为工具,开展细观非晶薄带爆炸焊接温度验证计算,计算结果与所发展的模型相一致。
In this paper, the temperature rise for amorphous foils explosive welding was researched. After analyzing the energy of plastic collision between layers, the relationship between pressure and density of amorphous foils was gave. Then the temperature increase of shock compression is counted, a useful conclusion is drawn： the impact temperature would get an increase with a rise for initial density of amorphous foils. On the basis of the relationship between initial density and impact temperature, selecting a suitable space between layers to design the experiment, then calculated the temperature on Fe78B13Si9amorphous foils explosive welding of 30 μm in thickness and gained its temperature distribution curve. The results indicated that the cooling rate met the requirements of keeping glass structure after welding, and the average temperature was also lower than the transformation temperature. So it is feasible to prepare bulk metallic glass by explosive welding.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2008年第12期2094-2098,共5页
Rare Metal Materials and Engineering
基金
国家自然科学基金(10402041)
国家部委基础科研(A2620061131)
关键词
爆炸焊接
非晶块体
冲击温升
explosive welding
bulk metallic glass
impact temperature-rise
