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6. 熔敷金属中贝氏体相变体积分数为50%时的温度(B50)与马氏体相变开始温度(Ms)随保护气中CO2含量的变化关系
Fig.6. Variation of B50 and Ms of deposited metals as function of CO2 content in the shielding gas (B50—temperature above which bainitic transformation never proceeds over 50% in volume, Ms—starting temperature of martensitic transformation)
