时效

This paper analyzed the conditions and effect of acquisitive prescription in other countries and areas, and the enlightenment to our country.

本文参考了国内外取得时效制度的立法状况，并分析其对我国建立取得时效制度的启示。

The results reveal that the double peaks exist in the age-hardening curves of both the unreinforced and the reinforced MB15 allo...

结果表明，MB15及其复合材料的时效硬化曲线上均存在双峰现象；SiCw的加入既提高了MB15的硬度，又加快了其时效速度；混粉方式对晶须分布及SiCw/MB15复合材料的室温力学性能影响很大。

Metacaulk 1200 Caulk Grade systems are rated for up to 3 hour conditions in accordance with the UL 2079 (Tests for Fire Resistance of Building Joint Systems) Test Standards.

Metacaulk 1200 根据 ASTM E814(UL1479)标准测试具有2小时阻火时效，UL2079 标准测试具有3小时阻火时效。

The result from X-ray diffraction showed cellular decomposition dominated the initial aging of Zn-Al based alloy prepared by rapid solidification with single roller.

通过100℃等温时效XRD分析可知，单辊快淬锌铝合金早期时效过程中胞状分解反应为主导。

For 0.7%Cu steel, aging at 450℃ for 90 minutes, a great deal of Nb particles precipitated in matrix, and aging at 650℃ for 90minute, these precipitates started to coarsen.

含铜为0.74％的试验钢在450℃90分钟时效时，有大量细小的Nb粒子析出，在650℃90分钟时效时，粒子发生粗化。

With raising temperature and prolonging time of aging treatment, the TiC films coarsen gradually into block so that the notch sensitivity vanished from the alloy.

合金的缺口敏感性与薄膜状TiC沿晶界析出有着密切的关系，随着时效温度的提高和时效时间的延长，晶界薄膜状TiC逐渐变为块状，因而缺口敏感得以消除。

The gaseous impurities in the alloys were well controlled with the sum of C, N and O less than 500wppm. For the first time it was found the strong interaction between Cr-Ti-CON, which reduces the mobility of Ti and CON, enhancing high-temperature strength and the aging-hardening property, and keeping the cold-work induced hardening at higher temperature. Aging-hardening could increase the tensile strength of V-4Cr-4Ti by 30% and could be utilized at 00 C for better economical performane of a vanadium structure. Hydrogen release will occur for the alloys tensile loaded at room temperature, which will affect the safety of a vanadium structure due to the resulting dimensional instability. For hydrogen embrittlement, impact toughness and fracture toughness of the alloy showed higher sensitivity than the tensile test elongation,so the toughness should be used as a new standard for the assessment of the embrittlement. Vanadium alloys were easily oxidized in air.

合金的气体杂质含量得到有效控制，C、N、O总量低于500wppm；首次发现Cr-Ti-CON之间的强相互作用，它使Ti、CON的高温可移动性降低，提高合金的高温强度、增强时效强化特性、使冷加工强化保持到更高温度；时效强化可使V-4Cr-4Ti的强度提高30%，可在低温（00C）下应用，提高构件的经济性；室温下，钒合金在拉应力的作用下，存在着氢释放，带来部件使用中的尺寸不稳定性，影响构件安全；氢脆是钒合金聚变应用的一个关键问题，合金的冲击韧性和断裂韧性表现出比拉伸延伸率更强的氢脆敏感性，应作为评价合金氢脆行为的新标准。

The results show that BS 460MPa grade reinforced bar can be produced all from Q235 or 20MnSi billet by the remained heat treatment process but the production cost of the former is lower. When the water pressure minishes, the intensities of reinforced bar reduce; the higher the temperature at the entrance of cooling bed is, the lower the intensities are. Therefore, the commendatory process parameters are that five stages coolers should be opened, water pressure should be all 1.8～2.0MPa and the temperature at the entrance of cooling bed of Q235 reinforced bar should lower than 650℃. The typical microstructure(Q235): the surface layer is tempered sorbite; the transition layer is pearlite and ferrite, and the partial ferrite is acicular; the core is pearlite and ferrite and the grain fineness is 8～10 grade. The yield strength is reduced by 10～20MPa after natural ageing and it can be simulated by artificial ageing(100℃×2h or 200℃×1h).

结果表明，Q235和20MnSi钢都可以利用余热处理工艺生产出性能合格的钢筋，但前者的生产成本较低；水压减小，钢筋强度降低，上冷床温度越高，强度越低，推荐5段水冷器全开，水压均为1.8～2.0MPa，Q235钢筋的上冷床温度应控制在650℃以下；钢筋典型的金相组织（Q235）表层为回火索氏体，过渡层为珠光体+铁素体且部分铁素体呈针状，心部为珠光体+铁素体，晶粒度8～10级；自然时效后屈服强度下降10～20MPa，用人工时效可以模拟自然时效，工艺是100℃×2h或200℃×1h。

Within the limitation period or after the expiration thereof, if the person allegedly liable has brought up a claim of recourse against a third person, that claim is time-barred at the expiration of 90 days, counting from the day on which the person claiming for the recourse settled the claim, or was served with a copy of the process by the court handling the claim against him.

在时效期间内或者时效期间届满后，被认定为负有责任的人向第三人提起追偿请求的，时效期间为九十日，自追偿请求人解决原赔偿请求之日起或者收到受理对其本人提起诉讼的法院的起诉状副本之日起计算。

The results show that the effect of Li is to increase the rate of hardening, however, the addition of lithium does not progressively change age hardening and precipitation process of Al--Cu--Mg--Ag alloys with low Cu/Mg ratio, and significant age hardening response only occurs with the addition of 2.0\%Li.

结果表明，在Al--4.0Mg--1.5Cu--0.4Ag合金中添加锂，可以加速合金的时效进程，但其时效硬化效果并不能简单地随着含锂量的增加而逐步加强，只有当锂含量达到2.0\%时，才表现出显著的时效硬化与强化效果。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。