This paper studies the mathematical simulation of the "properties-temperature" curve of ductile-brittle transition process for materials and finds the best mathematical model of ductile-brittle transition.
研究了Cr24Al2Si铁素体不锈钢韧脆转移过程的性能-温度曲线的数学模拟,找到了其最佳的韧脆转移数学模型。
The paper expounded the evaluate method and theory of cold-brittle fracture the essence and mechanism of ductile-brittle transition,analysed the fracture behaviour and relations among impact,bend and tensile specimens,and discussed the relations between theoretical temperature and other ones of ductile-brittle transition in metals.
本文阐述了钢的冷脆性评定方法及理论;韧脆转移的本质和机理;对冲击试样、弯曲试样、拉伸试样的断裂行为及其相互关系进行了分析;并对理论韧脆转移温度及与其它标准的转移温度之间的关系进行了讨论。
Investigation and Application on Ductile-to-Brittle Transition Behavior of Ice;
冰的韧脆转变行为研究及应用
Previous studies have demonstrated that self-excited vibration occurred during the ice speed at which ice fails in ductile-to-brittle transition (DBT) range.
分析表明,冰致平台自激振动发生在冰的韧脆转变的冰速范围内。
Percolation theory and percolation model of brittle-ductile transition of polymers;
逾渗理论及聚合物脆韧转变逾渗模型
Brittle-ductile Transition of PP/EPDM/Elastiomeric Nano-meter Particle (ENP) Ternary Blends;
PP/EPDM/纳米弹性体粒子三元共混体系的脆韧转变
A new criterion for brittle-ductile transition;
与断裂临界特征长度有关的聚合物脆韧转变判据
The ductile-brittle transitions due to both temperature and torsional prestrain were discussed by means of the micoscopic parameter ln(Rc/Ro).
利用扫描电镜测量了ＢＨＷ６０钢、２０钢和４５钢拉伸试样断口心部的临界空穴扩张比Ｒｃ／Ｒｏ，并据此分析了由于环境温度和扭转预应变等因素引起的韧脆转变过程及其细观形态。
In notched tensile test of PA-6,ductile-brittle transition is occurred with tensile velocity increasing accompaning crack propagation work decreasing.
在尼龙-6单边缺口拉伸实验中,随着拉伸速度增加,缺口拉伸断裂发生韧脆转变,同时伴随着裂纹扩展功的急剧降低。
The dynamic fracture toughness(K_(Id)) and characteristic of the ductile-brittle transition of steel 921A in various temperature were determined.
文章研究了921A钢在不同温度下的动态断裂韧性KId及韧-脆转变特征,结合仪器化冲击曲线和断口形貌的特征测定了该钢低温状态下的温度效应。
The results show that: the impact toughness of both base metal and weld metal decreases and the ductile-brittle transition temperature increases a little under pre-strain.
结果表明,预应变下,母材和焊缝的冲击韧度均有所降低,韧-脆转变温度有所提高,10%预应变后的焊缝其韧-脆转变温度低于室温(20℃),仍可在室温下安全使用,随预应变增加,材料的屈服强度与抗拉强度均有所提高,脆性断裂危险性增加。
FRACTURE TOUGHNESS PREDICTION OF A533B-1 STEEL OVER THE DUCTILE-BRITTLE TRANSITION RANGE BASED ON CONSTRAINT EVALUATION
A533B-1钢韧脆转变区断裂韧度预测的约束评估法
Investigation and Application on Ductile-to-Brittle Transition Behavior of Ice;
冰的韧脆转变行为研究及其工程应用
Freliminary Investigation of Microcracks in Laboratory Prepared Columnar Ice during Ductile-Brittle Transition
人造柱状冰韧脆转变区裂纹的初步研究
Ductile-brittle Transition Behavior of Heat-affected Zone in Copper Precipitation Strengthening Steel;
铜沉淀强化钢焊接热影响区韧脆转变行为研究
Phosphorus Equilibrium Grain Boundary Segregation and Its Effect on the Ductile-to-Brittle Transition Temperature for a 2.25Cr1Mo Steel;
2.25Cr1Mo钢中磷的平衡晶界偏聚及其对钢的韧脆转变温度的影响
Research of the Relationship between the Ductile to Brittle Transition and Stacking Fault Energy of High Nitrogen Containing Austenitic Stainless Steel
高氮奥氏体钢的韧脆转变与层错能之间的关系研究
ductile-brittle transition temperature
韧性－脆性转变温度
Fracture Toughness and Failure Curve of 22NiMoCr3-7 Steel in Ductile-Brittle Transition Range
22NiMoCr3-7钢韧-脆转变区断裂韧度及断裂失效曲线
Brittle-ductile Transition of PP/EPDM Blend Filled with Nanomullite
纳米莫来石填充PP/EPDM共混物的脆韧转变
The alloys occur ductile fracture after annealing.
合金热轧态呈脆性准解理断裂,退火后转变为韧性断裂。
The Brittle-Ductile Transition and Impact Fracture Surface Morphology of HDPE/E-TMB Blends and HDPE/Elastomer Blends
HDPE/E-TMB共混物和HDPE/弹性体共混物的脆韧转变和断面形态
Brittle-Ductile Transition of PA6/POE-g-MAH Blends in Notched Tensile and Notched Impact Tests
PA6/POE-g-MAH共混物在缺口冲击与缺口拉伸实验中的脆韧转变
The Influence of SMA Content on Brittle-Ductile Transition Temperature and Morphology of PA6/ABS Blends
SMA含量对PA6/ABS共混体系结构和韧-脆转变温度的影响
embrittlement temperature
延性 脆性转变温度
Study on Mechanism and Criterion for Brittle/Ductile Fracture and Theory of Crack-tip Deformation;
脆性/韧性断裂机理与判据及裂尖变形理论研究
By way of suitable heat treatment, the tensile fracture morphology changes from brittle intercrystalline fracture to dimple fracture, so the strength and ductility of the alloy is increased.
采用适当的热处理工艺可使合金强韧化 ,拉伸断口由脆性的沿晶断裂变为韧窝状断裂。
Study on Hardening and Toughing of 80 Steel Wire After Bainite Transformation
80钢丝在贝氏体转变后强韧化的研究
Change of Contemporary Human Value Awareness and Fragility of Present World;
从价值意识的转变看当今世界的脆弱性