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金属学报  1993, Vol. 29 Issue (10): 92-96    
  论文 本期目录 | 过刊浏览 |
40Cr—CrWMn钢的超塑焊接
文九巴;席聚奎
洛阳工学院;洛阳工学院
SUPERPLASTIC WELDING OF STEELS 40Cr-CrWMn
WEN Jiuba;XI Jukui Luoyang Institute of Technology
引用本文:

文九巴;席聚奎. 40Cr—CrWMn钢的超塑焊接[J]. 金属学报, 1993, 29(10): 92-96.
, . SUPERPLASTIC WELDING OF STEELS 40Cr-CrWMn[J]. Acta Metall Sin, 1993, 29(10): 92-96.

全文: PDF(948 KB)  
摘要: 采用形变热处理加有机溶液保护膜的表面处理方法,可使40Cr—CrWMn钢在空气炉中实现超塑焊接焊接温度750—780℃,变形速率2×10~(-4)s~(-1)压力50—90MPa,时间3-5min,获得与基材40Cr钢一致的接头强度分析了焊接区的显微组织,并提出钢超朔焊接的微观机制为原子扩散和晶粒滑移造成的原始界面消失
关键词 40Cr钢CrWMn钢起塑焊接    
Abstract:Superplastic welding of steels 40Cr-CrWMn, with prior surface treatment oforganic solution protecting coating after thermo-mechanical treating, may be performed inair in a furance under conditions: temperature ranged 750--780℃, strain rate 2×10~(-4) s~(-1),pressure 50--90 MPa, and time 3--5 min. The welds seem to have similar strength to the basesteel 40Cr. The microstructure of welds was analyzed under SEM and TEM. Themicromechanism for superplastic welding of steels was suggested as the disappearance of orig-inal bond interfaces caused by atomic diffusion and grain sliding during superplasticdeformation.
Key wordssteel 40Cr    steel CrWMn    superplastic welding
收稿日期: 1993-10-18     
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