保护气成分对1000 MPa级高强熔敷金属组织特征的影响
安同邦1,2(
),魏金山1,单际国2,田志凌1
),魏金山1,单际国2,田志凌1
Influence of Shielding Gas Composition on Microstructure Characteristics of 1000 MPa Grade Deposited Metals
Tongbang AN1,2(),Jinshan WEI1,Jiguo SHAN2,Zhiling TIAN1
),Jinshan WEI1,Jiguo SHAN2,Zhiling TIAN1
图2. 不同保护气熔敷金属显微组织的TEM明场像，残余奥氏体明场像、暗场像及其SAED花样
Fig.2. Bright-field TEM image of martensite/bainite lath structure of deposited metal by gas metal arc welding (GMAW) with 95%Ar+5%CO2 (a), bright-field TEM image of residual austenite in deposited metals by GMAW with 80%Ar+20%CO2 (b) and dark-field TEM image of residual austenite in deposited metals by GMAW with 80%Ar+20%CO2 (Inset is the corresponding select area electron diffraction (SAED) pattern of residual austenite) (c)
