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镍基非晶态及晶态钎料真空钎焊时母材溶解模型特性的研究
引用本文:张新平,任耀文.镍基非晶态及晶态钎料真空钎焊时母材溶解模型特性的研究[J].航空材料学报,1995,15(4):34-40.
作者姓名:张新平  任耀文
作者单位:西安交通大学机械工程学院,西安航空发动机公司
基金项目:中国科学院“快速非平衡凝固国家开放实验室”基金
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。

关 键 词:真空钎焊,楔形变间隙试样,镍基钎料,钎焊参数

STUDY ON THE DISSOLUTION MODEL OF BASE METAL IN THE LIQUID NICKEL-BASED AMORPHOUS AND CRYSTALLINE BRAZING FILLER METALS DURING VACUUM BRAZING
Zhang Xinping, Shi Yaowu.STUDY ON THE DISSOLUTION MODEL OF BASE METAL IN THE LIQUID NICKEL-BASED AMORPHOUS AND CRYSTALLINE BRAZING FILLER METALS DURING VACUUM BRAZING[J].Journal of Aeronautical Materials,1995,15(4):34-40.
Authors:Zhang Xinping  Shi Yaowu
Institution:Zhang Xinping; Shi Yaowu (Xi'an Jiaotong University) Ren Yaowen (Xi'an Aero-engine Company)
Abstract: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
Keywords:vacuum brazing  wedge-shape variable clearance specimen    Ni-based brazing fillermetal  dissolution  brazing parameters  
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