摘要
以楔形变钎焊间隙试样为对象，研究了采用Ｎｉ８２Ｃｒ７．５Ｓｉ４．５Ｂ３Ｆｅ３成分的镍基非晶态及晶态钎料真空钎焊１Ｃｒ１８Ｎｉ９Ｔｉ不锈钢时液态钎料对固态母材的溶解，建立了高温钎焊时母材溶解厚度（溶解深度）定量计算的物理－数学模型。平行等间隙及楔形变间隙试样真空钎焊试验结果表明，钎焊温度钎焊保温时间及钎焊间隙等参数对母材溶解有重要影响，并表明该模型具有较高的准确性，能够用于研究高温钎焊时钎料对母材的溶解特性，并进行溶蚀性评价。
In this paper,the dissolution of stainless steel base metal (1Cr18Ni9Ti) in the liquid Nickel-based (Ni82Cr7.5Si4.5B3Fe3) amorphous and crystalline brazing filler metals during the vacuum brazing has been investi-gated on a wedgeshape variable brazing clearance specimen, and a physical-mathematical model for quanti-tatively calculating the dissolution thickness of the base metal in liquid brazing filler metals has been putforward. The vacuum brazing experimental results obtained from the parallel and wedge-shape variableclearance specimens have verified that the brazing parameters such as the brazing temperature and holdingtirne as well as brazing clearance have an important influence on dissolution thickness of base metal duringvacuum high temperature brazing, and shown that the dissolution model of base metal has good accuracyand reliability, it can be used to investigate the dissolution characteristics of base metal and estimate thecorrosion of brazing filler metals
出处
《航空材料学报》
CAS
CSCD
1995年第4期34-40,共7页
Journal of Aeronautical Materials
基金
中国科学院"快速非平衡凝固国家开放实验室"基金
关键词
真空钎焊
镍基钎料
钎焊参数
vacuum brazing, wedge-shape variable clearance specimen, Ni-based brazing fillermetal, dissolution, brazing parameters
