Based on S. H. Yu's empirical electron theory of solids and molecules, the valence electron structure of austenite in low alloy ultrahigh-strength steels, 30CrMnSiNi_2A and 40 CrMnSiMoVA is established. The behavi...Based on S. H. Yu's empirical electron theory of solids and molecules, the valence electron structure of austenite in low alloy ultrahigh-strength steels, 30CrMnSiNi_2A and 40 CrMnSiMoVA is established. The behavior of various main-added elements in the kinetics of phase transformation is discussed on the basis of C-Me segregation caused by the valence electron structure, The influence of alloying elements on the structure and morphology of transformed products is discussed from the viewpoint of interaction between the driving force of phase transformation and segregating force. Then on the basis of the valence electron structure of the alloy, the composition design of ultrahlgh-strength steels is discussed.展开更多
Ⅰ. THE VALENCE ELECTRON STRUCTURES OF MARTENSITE IN LOW ALLOY ULTRAHIGH-STRENGTH STEELS AND THE SEGREGATION OF C-ME IN MARTENSITEThe valence electron structures ofmartensite in 30CrMnSiNi<sub>2</sub>A and...Ⅰ. THE VALENCE ELECTRON STRUCTURES OF MARTENSITE IN LOW ALLOY ULTRAHIGH-STRENGTH STEELS AND THE SEGREGATION OF C-ME IN MARTENSITEThe valence electron structures ofmartensite in 30CrMnSiNi<sub>2</sub>A and Gc-4 steels can be established based on Refs. [1—3]. To be brief, only σ, n<sub>A</sub> and n<sub>c</sub><sup>D</sup> are listed in Table 1, which are the values of electron structures of martensite in 30CrMnSi<sub>2</sub>A and Gc-4 steels.展开更多
H. I. Aaronson school proposed Drag-like Effect and they took the activity of carbon in γ-Fe as a criterion to explain the formation of 'Bay' in C-curves of phase transformation kinetics of alloys. This work ...H. I. Aaronson school proposed Drag-like Effect and they took the activity of carbon in γ-Fe as a criterion to explain the formation of 'Bay' in C-curves of phase transformation kinetics of alloys. This work employs Yu’s 'Empirical electron theory of solids and molecules' and C-Me segregation as a criterion to set forth the nature of drag-like effect and proposes the model of valence electron theory of 'Bay' formation.展开更多
Based on the empirical electron theory of solids and molecules of S. H. Yu, this paper proposes (i) the calculating model of valence electron structures in L_2~'-type substitutional and interstitial complex solid ...Based on the empirical electron theory of solids and molecules of S. H. Yu, this paper proposes (i) the calculating model of valence electron structures in L_2~'-type substitutional and interstitial complex solid solutions; (ii) the bond length difference analysis (BLD) method of unknown bond length structure solid solutions; (iii) the treatment of uncertainty of BLD analysis solution.展开更多
文摘Based on S. H. Yu's empirical electron theory of solids and molecules, the valence electron structure of austenite in low alloy ultrahigh-strength steels, 30CrMnSiNi_2A and 40 CrMnSiMoVA is established. The behavior of various main-added elements in the kinetics of phase transformation is discussed on the basis of C-Me segregation caused by the valence electron structure, The influence of alloying elements on the structure and morphology of transformed products is discussed from the viewpoint of interaction between the driving force of phase transformation and segregating force. Then on the basis of the valence electron structure of the alloy, the composition design of ultrahlgh-strength steels is discussed.
文摘Ⅰ. THE VALENCE ELECTRON STRUCTURES OF MARTENSITE IN LOW ALLOY ULTRAHIGH-STRENGTH STEELS AND THE SEGREGATION OF C-ME IN MARTENSITEThe valence electron structures ofmartensite in 30CrMnSiNi<sub>2</sub>A and Gc-4 steels can be established based on Refs. [1—3]. To be brief, only σ, n<sub>A</sub> and n<sub>c</sub><sup>D</sup> are listed in Table 1, which are the values of electron structures of martensite in 30CrMnSi<sub>2</sub>A and Gc-4 steels.
基金Project supported by the National Natural Science Foundation of China.
文摘H. I. Aaronson school proposed Drag-like Effect and they took the activity of carbon in γ-Fe as a criterion to explain the formation of 'Bay' in C-curves of phase transformation kinetics of alloys. This work employs Yu’s 'Empirical electron theory of solids and molecules' and C-Me segregation as a criterion to set forth the nature of drag-like effect and proposes the model of valence electron theory of 'Bay' formation.
基金Project supported by the National Natural Science Foundation of China.
文摘Based on the empirical electron theory of solids and molecules of S. H. Yu, this paper proposes (i) the calculating model of valence electron structures in L_2~'-type substitutional and interstitial complex solid solutions; (ii) the bond length difference analysis (BLD) method of unknown bond length structure solid solutions; (iii) the treatment of uncertainty of BLD analysis solution.
