目的观察不同浓度氟泡沫对脱矿牙釉质表面显微硬度值的影响。
Objective To investigate the influence of fluoride foam of different concentration on microhardness of demineralized enamel surface.
显微硬度测试表明，对相同成分合金，非晶态的显微硬度值比晶态的低。
The microhardness value of the amorphous alloy is lower than that of the crystalline alloy with the same composition.
从焊缝区到母材，显微硬度值逐渐下降，焊缝区硬度值高出母材约35。
The microhardness declined from the welding line to base metal, and the microhardness of the welding line was about 35 higher than that of base metal.
高压扭转载荷越大，扭转圈数越多，细化效果越明显，显微硬度值也越高。
The greater the high pressure torsion load and the more turns applied,? The more obvious refinement effect and the higher the microhardness value.
与原始接头显微硬度值相比，经历高温热处理后接头的显微硬度降低约60HV左右。
But the microhardness of the weld bead after heat treatment reduces by 60 HV, compared with origin welded joint.
样品表面的显微硬度值达到了335HV0.05，与基体相比表面硬度提高两倍左右。
The surface microhardness had improved from 160HV0.05 of the initial sample to 335HV0.05 after CRPD.
并进行显微硬度试验，测量出不同变形条件下各个试样的显微硬度值，研究显微硬度—位错密度关系。
Micro-hardness values of various samples under different deformation conditions were measured. The relationship between micro-hardness and dislocation density was researched.
分别以应力分析仪和显微硬度仪测试两组试件的挠曲强度和硬度值。
The flexural strength and hardness of the specimens were tested with an instron testing machine and a microhardness tester.
研究结果表明，混粉电火花镜面加工不但能够显著降低加工表面粗糙度值，而且能够提高加工表面的耐磨性、耐蚀性和表层显微硬度。
It is proved that mirror EDM with mixed dielectric powders can not only decrease the surface roughness, but also improve the surface abradability, corrosion-resistance and micro - hardness.
随球磨时间的延长，粉末显微硬度开始略有下降，然后迅速增加，在基本形成非晶后，保持恒定值。
Wi th the milling time increasing, the microhardness decreases a little at first, and then rapidly increases, in the end it keeps a constant when amorphous microstructure is basically formed.
随球磨时间的延长，粉末显微硬度开始略有下降，然后迅速增加，在基本形成非晶后，保持恒定值。
Wi th the milling time increasing, the microhardness decreases a little at first, and then rapidly increases, in the end it keeps a constant when amorphous microstructure is basically formed.
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