Determination of ductile-brittle transition temperature of DIWA353 steel plate for boiler and pressure vessel;
锅炉压力容器DIWA353钢板韧脆转变温度的测定
On the method of data processing for ductile-brittle transition temperature;
材料韧脆转变温度数据处理方法探讨
The experimental results showed that the yield strength of pipeline steel X80 with 16mm wall thickness can be up to over 670 MPa through controlled rolling/cooling,and the ratio of tensile strength to yield strength and ductile-brittle transition temperature are lower than 0.
85,韧脆转变温度低于-60℃,达到了很好的强韧性匹配。
Series impact tests were carried out to measure the series impact work done to a 400?MPaclass supersteel which was supplied through controlled rolling and cooling rate accelerated with trace element Nb contained, thus giving a brittle transition temperature curve.
以微Nb处理控轧控冷工艺生产的400MPa级超级钢为研究对象,采用"系列冲击实验法"测定系列冲击功,绘制出脆性转变温度曲线·按综合能量法及断口形貌,确定出脆性转变温度为-80℃,并与相同化学成分、普通方法生产的钢板的脆性转变温度加以比较,对这一温度降低的原因进行了分析·分析结果认为,脆性转变温度降低、低温韧性的改善是化学成分、微观组织、轧制工艺综合作用的结果·钢中S、P、Si含量低有利于脆性转变温度的降低、微量Nb的存在有利于脆性转变温度的降低;晶粒细化,亚晶强化是试验钢脆性转变温度降低的组织原因;控轧控冷工艺的采用是降低脆性转变温度的工艺因素
Based on the character of ductile-brittle transition temperature curve, Boltzmann function was proposed to depict the relationship of impact absorbing energy with temperature deterministically and quantitatively.
试验数据的回归分析表明 ,该方法获取的回归曲线具有较高相关系数 ,并能较准确地求取材料脆性转变温度vTr5 4 。
Charpy brittle transition temperature was studied and the mechanical properties and fracture toughness were tested at room temperature and working iemperaiure for 11/4Cr-1/2Mo steel, which has been used in hydrogen with partial pressure 4.
55MPa氢分压下使用12万小时的1 1/4Cr-1/2Mo钢进行了室温及使用温度的力学性能,断裂韧性和夏比冲击功的脆性转变温度的试验研究。
The paper studies the facture appearance transition temperature(FATT)of SA335P91/12CrMoV dissimilar steel welding metal.
本课题对异种钢焊接SA335P91/12Cr1MoV的焊缝金属脆性转变温度进行了研究,通过高、中、低3种不同匹配的焊缝金属夏比缺口冲击试验数据的计算及分析,得出SA335P91/12Cr1MoV异种钢3种匹配的焊接接头焊缝金属的脆性转变温度分别为低匹配78℃、中匹配79℃、高匹配91℃。
The ductile-brittle transition temperature,chemical composition,microstructure and fracture of welded metal are investigated to discuss the difference of impact absorbed energy between butt weld and deposited metal.
针对对接焊缝金属和熔敷金属之间的冲击吸收功差异,分别从材料的韧-脆转变温度、成分、组织以及断口方面进行了探讨。
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
ductile-brittle transition temperature
韧性－脆性转变温度
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
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
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
During the air pressure test, the test temperature shall be higher than the brittle transition temperature of the metal material.
气体压力的试验时，试验温度必须高于金属材料的脆性转变温度。
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
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。
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
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
High manganese steels undergo a ductile to brittle transition at low temperature, which is accompanied by a change in the fracture mechanism from dimple fracture to intergranular fracture.
高锰奥氏体钢随温度降低其断裂机制由韧窝状断裂转变到晶界断裂。
dyeing transition temperature
染色转移温度,染色转变温度
Study on Relation between Fracture toughness and Temperature for Nodular cast iron;
球墨铸铁断裂韧性随温度变化规律的研究