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℃。
ductile-brittle transition temperature
韧性－脆性转变温度
embrittlement temperature
延性 脆性转变温度
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。
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
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
EXPERIMENTAL STUDY ON SEMI-BRITTLE BEHAVIOR OF ROCKS AT TEMPERATURE AND PRESSURE CORRESPONDING TO MIDDLE-LOWER CRUST
中下地壳温度压力条件下岩石半脆性蠕变的实验研究
test method for brittleness temperature of plastics and elastomers by impact
塑料及弹性体冲击脆化温度试验方法
dyeing transition temperature
染色转移温度,染色转变温度
A Discussion on Structural Steel Brittleness Induced by Temperature and Loading Rate and Fracture Controlment;
温度和载荷速率影响结构钢脆性的本质探讨及脆断控制
Plastic Deformation, Glass Transition, and Prediction of Glass Transition Temperature for Metallic Glasses
金属玻璃的塑性变形、玻璃转变以及对玻璃转变温度的预测
NATURE OF ISOTHERMAL TRANSFORMATION BETWEEN ROOM TEMPERATURE AND MARTENSITE POINT IN A BALL-BEARING STEEL
滚珠钢在室温到马氏体点温度范围内等温转变的性质
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
Study on the Self-deflection and Temperature Dependence of Photorefractive Spatial Solitons and Solitonic Observation;
光折变空间孤子自偏转与温度特性及孤子观测
Anisotropy of Resistance Transition Temperature of La-Ca-Mn-O Colossal Magnetoresistance Ceramics
镧钙锰氧陶瓷转变温度各向异性的研究
Effects of Resin Glass Transition Temperature on Tension/Compression Properties of GFRP
树脂玻璃化转变温度对GFRP拉/压性能的影响
Study on glass transition temperature of epoxy matrix modified with nano-Al_2O_3
纳米粒子改性环氧树脂玻璃化转变温度的研究
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
