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1)  kovar;covar
科伐(共膨胀)合金
2)  the alloy expands
膨胀合金
1.
The application of N_2O-C_2H_2flame Atomic absorption spectrometer to measure of silicon in the alloy expands is studied.
采用N2O-C2H2火焰原子吸收光谱法测定膨胀合金中硅。
3)  faxed expansible Fe-Ni alloy
定膨胀合金
4)  low expansion alloy
低膨胀合金
1.
Development of low expansion alloy is described.
阐述了低膨胀合金的发展,介绍了低膨胀合金的分类和用途。
2.
The effects of sintering process on the properties of 4J32 low expansion alloys by powder injection molding were investigated.
研究了烧结工艺对粉末注射成形4J32低膨胀合金性能的影响。
5)  4J42 expanding alloy
4J42膨胀合金
1.
In production of 4J42 expanding alloy wire blank,the hot working process was optimized with cogging process replacing forging process and heavy coiled high speed wire rod rolling technique replacing conventional open - train mill roiling technique.
4J42膨胀合金丝坯生产以初轧开坯工艺代替锻造工艺、以大卷重高速线材轧制技术代替传统横列式轧机的轧制技术,优化了丝坯的热加工工艺。
6)  low expansion superalloy
低膨胀高温合金
1.
The microstructures of various kinds of grain boundary phases in low expansion superalloy Incoloy 907 have been investigated by high resolution electron microscopy(HREM) and high resolution image processing.
用高分辨透射电子显微术及高分辨图像处理技术对低膨胀高温合金Incoloy907晶界相作了分析研究,经图像处理后,清晰再现了907合金各种晶界相的高分辨像。
2.
A new low expansion superalloy named as GH6783 with a service temperature of 700℃ is introduced in this paper.
介绍了一种700℃使用的新型抗氧化低膨胀高温合金。
3.
The microstructure and mechanical properties of GH783 low expansion superalloy with oxidation resistance were studied using optical microscope and transmission electron microscope(TEM).
研究了抗氧化型低膨胀高温合金GH783的组织与性能。
补充资料:低膨胀高温合金
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CAS号:

性质:兼有低膨胀合金和高温合金特性的合金。典型的低膨胀合金是因瓦合金,其膨胀系数低,强度也低,高温强度更低。而低膨胀高温合金则在保持低膨胀系数的同时具有高强度,尤其是高温强度。如Incoloy 903合金膨胀系数低,从室温到650℃,平均膨胀系数为10.3×10-6/℃,弹性模量低且基本恒定,室温σb为1310MPa,650℃σb为1000MPa,达到一般高温合金的强度水平,但膨胀系数低一半。该合金有良好的冷热疲劳性能,由于不含铬,抗氧化性较差,但具有较高抗氢脆能力。另外还有低铝高铌的Incoloy 907合金和高硅的Incoloy 909合金,构成低膨胀高温合金系列。这种合金是用于高性能航空涡轮发动机主动间隙控制技术的关键材料,制作高压压气机机匣、涡轮内外环及封严环等部件。

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