1) ductile-brittle transition temperature curve
韧脆转变温度曲线
1.
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.
根据韧脆转变温度曲线的特点 ,提出一种能够定量描述冲击功与温度关系的Boltzmann函数。
2) ductile-to-brittle transition
韧脆转变
1.
Investigation and Application on Ductile-to-Brittle Transition Behavior of Ice;
冰的韧脆转变行为研究及应用
2.
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。
3) ductile-brittle
韧脆性
4) Ductile-brittle transition
韧脆转变
1.
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。
5) ductile-brittle transition
韧-脆转变
1.
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。
2.
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。
6) brittle-to-ductile transition
韧脆转变
1.
It was also observed that the brittle-to-ductile transition for this multiphase alloy was sensitive to strain ra.
15Hf合金具有明显的韧脆转变行为,韧脆转变温度依赖于应变速率。
2.
It is found that γ titanium aluminide manifests brittle-to-ductile transition (BDT) at elevated temperature and the brit-tle-to-ductile transition temperature (TBDT) is positively sensitive to the strain rate.
采用拉伸试验,研究了不同应变速率(10-5-10-1s-1)下温度对具有近全片层组织的γ+α2双相Tial合金的屈服强度和延伸率的影响,得到Tial合金韧脆转变温度随应变速率升高而升高的变化关系,随后确定Tial合金韧脆转变激活能为324kJ/mol。
参考词条
补充资料:超导转变温度
超导转变温度
superconductive transition temperature
ChOC吐取)ZhUOnbi即WendU超导转变温度(supe二onductivetlansitio。tem-伴m灿re)超导材料由超导态转变为正常态的温度。加世纪印年代末,美国标准局(NBS)的科学家发现,铅(7 .1卯7K)、锢(3.414 SK)、铝(l.1810K)、锌(0沼匆OK)以及福(0.5200K)5种材料的超导转变温度的复现性均优于hnK,并且有较窄的转变宽度,可以作为测温固定点。1盯6年临时温标(EPI,一76)中利用这5种材料作为该温标的固定点。后来,又增加了一些新的材料:祝(9.邓SOK)、金化锢(O俄巧SK)、金化铝(0.1印SK)、铱(0.“旧OK)、铁(0.工3 OK)和钨(0.0160K)。在rIS一oo中,它只作为近似技术中的参考点。镖器翌纂纂蔚泰杯”‘化繁穿戮
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