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热裂纹形成
相关语句
  hot cracking formation
     Study on Mechanism of Hot Cracking Formation in Austenitic Weld -The Influence of Chemical Composition on Hot Cracking Susceptibility in 25%Cr 20%Ni Anstenitic Weld
     奥氏体焊缝热裂纹形成机理的研究──成分对25%Cr-20%Ni奥氏体焊缝热裂倾向的影响
短句来源
     STUDY OF THE TEMPERATURE RAGES OF HOT CRACKING FORMATION IN THE WELD METAL OF LOW-CARBON STEEL
     低碳钢焊接热裂纹形成温度区的研究
短句来源
     Moreover, they are able to decrease the temperature and increase the stress of hot cracking formation, as a result, decrease the tendency of hot cracking.
     同时,稀土使合金的热裂纹形成温度降低,增加了热裂纹形成应力,降低了合金的热裂倾向性.
短句来源
  “热裂纹形成”译为未确定词的双语例句
     The results show that thermal cracks form accord ing to yield strength of the die steel at working temperature, thermal crack growth in the die is according to fracture toughness the die steel at working temperature.
     结论指出热裂纹形成取决于工作温度下模具钢的屈服应力,而热裂纹扩展则取决于工作温度下模具钢的断裂韧性. 由于裂纹扩展期占据总寿命的绝大部分,固此匹配工作温度下模具钢的强度与断裂韧性是适宜的、
短句来源
     The hot tearing temperature and the critical rtacture stress has been investigated for Al-Cu alloy. It is found that both the critical fracture stress and the hot tearing temperature are closely associated with the deformation velocity.
     对A1—Cu合金热裂纹形成的温度和热裂纹形成时的临界断裂应力的研究表明,热裂纹形成的温度和临界断裂应力均与变形速度有着密切地关系:随着变形速度的增加,热裂纹形成的温度也相应地上升;
短句来源
     THE CAUSE & ANALYSIS ABOUT THE COPPER TUBE CRAZE DURING WELDING
     铜管钎焊热裂纹形成的原因与分析
短句来源
     Forming Mechanism and Processing Control of Hot Crack in Die-casting Magnesium Alloys
     镁合金压铸热裂纹形成机制及工艺对策
短句来源
     Effect of Deformation Velocity on Hot Cracks in AI-Cu Alloy Castings During Solidification
     Al-Cu合金在凝固过程中的变形速度对热裂纹形成的影响
短句来源
更多       
  相似匹配句对
     Formation of Hot Tearing in Directional Solidification
     定向凝固中裂纹形成过程
短句来源
     FORMATIVE MECHANISM OF THERMAL SHOCK FATIGUE CRACK OF CERMETS
     金属陶瓷冲击疲劳裂纹形成机制
短句来源
     The Effects of Solidification Process on the Cracks Formation
     凝固过程对裂纹形成的影响
短句来源
     In this paper, we demonstrate the thermal crack formation and its working condition.
     本文论述了裂纹形成与工作条件.
短句来源
     STUDY OF THE TEMPERATURE RAGES OF HOT CRACKING FORMATION IN THE WELD METAL OF LOW-CARBON STEEL
     低碳钢焊接裂纹形成温度区的研究
短句来源
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In this paper the process of forming hot cracks has been simulated by utilizing a testing unit designed by ourselvs. The hot tearing temperature and the critical rtacture stress has been investigated for Al-Cu alloy. It is found that both the critical fracture stress and the hot tearing temperature are closely associated with the deformation velocity. The hot tearing temperature increases with a rise in fhe deformation velocity, however, there exists a peak value between the critical fracture stress and the...

In this paper the process of forming hot cracks has been simulated by utilizing a testing unit designed by ourselvs. The hot tearing temperature and the critical rtacture stress has been investigated for Al-Cu alloy. It is found that both the critical fracture stress and the hot tearing temperature are closely associated with the deformation velocity. The hot tearing temperature increases with a rise in fhe deformation velocity, however, there exists a peak value between the critical fracture stress and the deformation velocity. Moreover the condition for forming hot cracks has been analyzed: on condition V<(KR/Es+β/t-γR)/l the hot cracks will not be formed.

本文采用自行设计的一种测试装置模拟热裂纹的形成过程。对A1—Cu合金热裂纹形成的温度和热裂纹形成时的临界断裂应力的研究表明,热裂纹形成的温度和临界断裂应力均与变形速度有着密切地关系:随着变形速度的增加,热裂纹形成的温度也相应地上升;而合金的临界断裂应力与变形速度的关系则存在着一个峰值。同时对热裂纹的形成条件进行了理论解析,当满足V<(KR/Es+β/τ-γ·R)·ι条件时,热裂纹将不产生。

The effect of the rare earth element La on hot brittleness of the Al-4% Cu alloys has been invetigated by using a specially designed test unit. The experimenta results showed that with a small amount of La added the hot brittleness zone of the Al-4% Cu alloy in solid-liquid state obviously reduces, i. e. the lower limir of this zone move up, and the instantaneous fracture strength obviously increases. The addition of La can also decrease the hot tearing forming temperature and increase the critical fracture...

The effect of the rare earth element La on hot brittleness of the Al-4% Cu alloys has been invetigated by using a specially designed test unit. The experimenta results showed that with a small amount of La added the hot brittleness zone of the Al-4% Cu alloy in solid-liquid state obviously reduces, i. e. the lower limir of this zone move up, and the instantaneous fracture strength obviously increases. The addition of La can also decrease the hot tearing forming temperature and increase the critical fracture stress, moving the peak of critical fracture stress to a greater value of deformation Speed. Therefore it has been shown that a small amount of La addition can reduce the tendency o the Al-4% Cu alloy to hot tearing. It was pointed out that the reason for decreasing the hot brittleness in solid-liquid state is the fomration of high melting intermetallic compounds between La and Al, Cu which results in the strengthening of grain boundaries.

本文采用自行设计的装置研究了稀土La对Al—4%Cu合金热脆性的影响。试验表明加入微量L_α可使Al—4%Cu含金在固液态时的热脆区明显缩小,热脆区的下限上移,并能明显地提高合金在凝固过程中的瞬时断裂强度。La的加入可使合金热裂纹形成温度下降,使临界断裂应力增加,且峰值右移。这表明,在Al—4%Cu中加入微量La可使热裂倾向性降低。文章指出,La与Al、Cu形成高熔点金属间化合物使晶间强化是降低合金在固液态时热脆性的主要原因。

In this paper, we demonstrate the thermal crack formation and its working condition. The results show that thermal cracks form accord ing to yield strength of the die steel at working temperature, thermal crack growth in the die is according to fracture toughness the die steel at working temperature.

本文论述了热裂纹的形成与工作条件.结论指出热裂纹形成取决于工作温度下模具钢的屈服应力,而热裂纹扩展则取决于工作温度下模具钢的断裂韧性.由于裂纹扩展期占据总寿命的绝大部分,固此匹配工作温度下模具钢的强度与断裂韧性是适宜的、

 
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