负混合焓合金化推动高强韧合金发展

韩晓东, 安子冰, 毛圣成, 龙海波, 杨鲁岩, 张泽

Negative Mixing Enthalpy Alloying to Promote the Development of Alloys with High Strength and Ductility

HAN Xiaodong, AN Zibing, MAO Shengcheng, LONG Haibo, YANG Luyan, ZHANG Ze

图3 混合焓与显微结构特征关联关系[11,12,15,27]

Fig.3 Correlation between the mixing enthalpy and microstructure characteristics of alloys[11,12,15,27] (With the decrease of the mixing enthalpy of alloy, at least three effects are presented, including the bond energy and slow diffusion effect, the local chemical ordering effect, and the interface and the size effect; where -n represents the negative mixing enthalpy; band b1 represent the Burgers vectors of dislocation)