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
Influence of Shielding Gas Composition on Microstructure Characteristics of 1000 MPa Grade Deposited Metals
Tongbang AN1,2(),Jinshan WEI1,Jiguo SHAN2,Zhiling TIAN1

图7. 不同保护气熔敷金属凝固组织转变机制示意图

Fig.7. Schematics of microstructure transformation mechanism of deposited metals with different shielding gases(a) vertical cross-section phase diagrams of deposited metal(b) schematic of solidification model of weld pool metal(c) 95%Ar+5%CO2 (d) 90%Ar+10%CO2 (e) 80%Ar+20%CO2 (f) 70%Ar+30%CO2