There exist three brittle temperature ranges during the course of solidification and cooling process in the weld metal of Low-carbon steel.
低碳钢焊缝金属凝固冷却过程存在三个脆性温度区。
Compared with the plastics that had high brittle temperature, the plastics that had low brittle temperature had a higher retention of property.
与脆化温度较高的相比,脆化温度较低的材料在低温下性能保持率较高。
The results show with increasing quenching temperature the brittle temperature of the steel tempered at low temperature brittle temperature moves upwards.
结果表明:随淬火温度提高,低温回火脆性区向高温区漂移。
Through analysis on inside weld forming and welding procedure of SSAW pipe, it pointed out weld crack is easy to appear in brittle temperature zone in welding pool.
通过对螺旋埋弧焊管内焊缝成型和焊接过程的分析,指出焊缝裂纹易产生在焊接熔池脆性温度区。
The front impact roller causes transverse plastic compression strain in the weld which is in the brittle temperature range, which counteracts the tensile strain which leads to hot cracking.
前轮对处于脆性温度区间的焊缝金属施加一个横向挤压塑性应变,减小甚至抵消致裂的拉伸应变,防止了焊接热裂纹的产生。
Structural Steels tend to brittle fracture at low temperature and with high thickness.
随着温度的降低和厚度增加,钢材的脆性增加。
For alloy steel piping system, the liquid temperature shall be higher than the brittle transition temperature of the metal material.
如果是合金钢管道系统,液体温度应高于金属材料的脆性转变温度。
This hard and brittle magnet has the features of powerful magnetism, good temperature stability, good resistance to demagnetization, good corrosion resistance.
其材质特点是硬而脆,磁性较强,温度稳定性好,不易退磁,耐腐蚀性好。
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。
The research results showed that the slab surface temperature dropping into the third brittle zone played an important role in causing transverse crack formation of microalloyed slab.
研究表明,铸坯表面温度落入钢的第三次脆性温度区是造成铸坯表面横裂的一个重要原因。
Temperature stability is poor with easy soft in summer and brittle in winter and tends to be cracks.
表面易被磨光而影响安全,温度稳定性差,夏天易软、冬天易脆并产生裂缝。
Giving an imitation of traditional plastic theory , a damage surface model on brittle rock about temperature in stress-space is introduced and the evolutionary law is discussed qualitatively.
参照经典塑性力学的屈服面理论,引入了温度作用下应力空间中脆性岩石的损伤面模型,定性地讨论了荷载和温度影响下损伤面时的演化规律。
The main effect of water on brittle plastic transition of mafic rocks is embodied by both the change of strength and temperature of brittle ductile transition and brittle plastic transition.
水对基性岩脆塑性转化的影响体现在岩石的强度和脆延性与脆塑性的转化温度两方面。
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。
The sensibility of strain aging, ductile-brittle transit temperature, weldability, and the coordination between strength and ductility of reinforced steel bars were systematically investigated.
对试验钢筋的应变时效敏感性、韧脆转变温度、可焊性、强度与韧性的配合进行了系统的测试和研究。
The dimples of composites fracture gradually decreases, exhibits brittle fracture, as the testing temperature increases.
断口分析表明,随着测试温度的提高,韧窝逐渐变小,呈脆性断裂特征。
The effect of normalizing on microstructure, strength, impact toughness and ductile-brittle transition temperature of FAS390Q axle housing steel was studied.
研究了正火处理对FAS390Q桥壳钢显微组织、强度、冲击韧性和韧脆转变温度的影响。
Research purposes: at a low temperature, the mechanical properties of rail steel get worse and brittle (failures) can happen more easily.
研究目的:钢轨钢材在低温下力学性能变差,容易发生脆性破坏,这直接威胁着铁路运输的安全。
This paper proposes the analytical method for fracture mode and design method for prevention of brittle fracture at low temperature.
提出了钢结构断裂模式的分析方法和钢结构低温脆断设计方法。
The research results showed that the slab surface temperature dropping into the third brittle zone played an important role in causing transverse crack formation ofm...
研究表明,铸坯表面温度落入钢的第三次脆性温度区是造成铸坯表面横裂的一个重要原因。
The effects of water temperature, dynamic vacuum treatment and ultrasonic treatment on desulphurization technique of candied brittle plum processing were investigated in this paper.
文中研究了水温、真空动态处理、超声波处理在脆梅加工脱硫工艺中的应用效果。
The brittle morphologies become much more notable, and appear the inter-and trans-granular fracture mode after sodium corrosion at high temperature for both of W-specimens.
钠腐蚀后,两种钨试样的沿晶脆断特征变得更为显著,为沿晶和穿晶混合型脆性断裂。
The research results showed that the slab surface temperature dropping into the third brittle zone played an important role in causing transverse crack formation of microalloyed slab. E…
研究表明,铸坯表面温度落入钢的第三次脆性温度区是造成铸坯表面横裂的一个重要原因。
The fracture mode of dry samples is all brittle fracture; Wet samples are not fracture only at high temperature.
干态试样的断裂形式都为脆性断裂,湿态试样只有在高温下未发生断裂。
The specimens with Widmanstatten structure have higher impact strength and lower ductile-brittle transition temperature than those with equiaxial granular ferrite structure.
有魏氏组织的试样较呈等轴铁素体的试样有更高的冲击韧性和更低的韧脆转变温度。
Soft pitch is a black solid at a certain temperature , it will be solidified into a brittle solid with shell-like fracture.
常温下为黑色固体,在一定的温度下凝固成很脆的具有贝壳状断口的固体,呈玻璃相;
The sleeve is especially suitable for high-temperature seal and connection of the brittle material pipe fitting.
该卡套尤其适用于脆性材料管件的高温密封和连接。
The sleeve is especially suitable for high-temperature seal and connection of the brittle material pipe fitting.
该卡套尤其适用于脆性材料管件的高温密封和连接。
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