An overview of the recent progress in the theoretical study of relationship between grain-boundary segregation and brittle fracture is provided.
综述和简要评价了晶界偏聚和材料脆性断裂之间关系的理论研究进展情况。
This paper shows that inheritance phenomenon of coarse austenite grains are due to the boundary segregation of carbide along the prior austenite grain boundary.
研究表明，调质后粗晶奥氏体的遗传现象，是由于沿原奥氏体晶界碳化物偏聚析出的结果。
It has been demonstrated that the boron segregation at austenite grain boundaries in quenched steel is a non-equilibrium grain boundary segregation phenomena occurred during cooling.
业已证实，淬火硼钢中硼向奥氏体晶界的偏聚，是在冷却过程中发生的一种非平衡的晶界偏聚。
The test has been demonstrated that the boron segregation at austenite grain boundaries in quenched steel is a non-equilibrium grain boundary segregation phenomena occurred during cooling.
通过试验，论证了淬火钢中硼向奥氏体晶界的偏聚，是在冷却过程中发生的一种非平衡的晶界偏聚现象。
The results show that main cause of conchoidal fracture forming is that composition segregation in solidification grain boundary of casting steel reduces the resistance of crack propagation.
结果表明，沿一次晶晶界的成分偏析对裂纹扩展阻力的降低作用是铸钢中贝壳状断口形成的主要原因。
In present work, the quantum theory of scatter of grain boundary to solutes has been proposed to explain the solute segregation on moving boundaries.
本文提出，可以用晶界对溶质原子热运动散射的量子理论来解释溶质原子在运动晶界上的偏聚现象。
The equation of equilibrium segregation of boron to grain boundary was obtained.
建立了硼的晶界平衡集聚方程。
The relationship between the boron hardenability factor and the equilibrium segregation of boron to grain boundary, the composition of steel, the austenitizing temperature, grain size was studied.
研究了硼淬透性因子与硼的晶界平衡集聚规律、钢的成分、奥氏体化温度及晶粒尺寸的关系。建立了硼的晶界平衡集聚方程。
It is found that the alloying elements segregation in grains and the grain boundary cleanliness control the yield stress value and the tough-strength properties of this material respectively.
发现材料的晶内偏析和奥氏体晶界洁净度分析控制钢的屈服强度和韧度。从而改变了此钢按细化晶粒度控制强韧性的工艺指导思想。
It is found that the alloying elements segregation in grains and the grain boundary cleanliness control the yield stress value and the tough-strength properties of this material respectively.
发现材料的晶内偏析和奥氏体晶界洁净度分析控制钢的屈服强度和韧度。从而改变了此钢按细化晶粒度控制强韧性的工艺指导思想。
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