拉伸時的延伸 的英文怎麼說
中文拼音 [lāshēnshídeyánshēn]
拉伸時的延伸
英文
tensile extension-
At the same time, the ochre coloured pottery culture expands from rajasthan into the gangetic plain
同時，流行赭色陶器的文化從拉賈斯坦邦延伸到恆河平原。Contents of re have an effect on the tensile mechanical properties at high temperature to some degree. proper amount of re can improve b & 0. 2 apparently and 5 a little, because re can form compounds of good thermal stability with magnesium, which can be effectively strengthened by heat treatment
試樣中稀土的含量影響試樣的力學性能指標_ b （抗拉強度） 、 _ （ 0 . 2 ）和延伸率：適量的稀土可顯著提高_ b 、 _ （ 0 . 2 ） ，並一定程度上提高其延伸率，這是因為稀土與鎂可形成本身熱穩定性非常好的化合物，並且可時效強化。Secondly, the effect of transverse deforming on the property of the wedge pressing was studied. the results showed that : the wedge pressing stock with the transverse deforming amount of 10 % acquired the best performance. the highest density got the biggest rate of slope while with the amount of 30 % the curve was more some special structure and performance as following : the large porosities was crushed into small or linear ones with the high - direction deformation amount of 20 % ; as the increasing of the high - direction deforming, the particles got a further deforming, the porosities got a further crushing, the small porosities were mergered by the large ones and the former then disappeared ; when the amound reached 60 %, the quantity of the porosities would obviously decrease which made the materials compact, the microstructure more uniform and the density and hardness curves more horizontal, the relative desity could reach 99. 7 %, the tensile strength b of the as - compacted samples reached 408mpa with the yield strength s teached 289mpa and the elongation percentage reached 13. 6 %. in addition, the microstructure of the wedge pressing stock under the pressing temperectureof 450 was uniform, the porosities and the boundries of the grains basically disappeared and the conjunction between particles was great
採用雙向楔形壓制，大尺寸噴射沉積5a06鋁合金楔壓坯的組織和性能變化具有如下特點:當高向變形量為20 %時，大的孔洞變形破碎為小的孔洞，或呈線狀孔;隨著高向變形量的增加，顆粒進一步變形，孔洞進一步破碎，大孔「吞併」小孔，小孔塌陷並逐步消失;當高向變形量達到60 %時，孔洞量大為減少，材料基本緻密，組織趨于均勻，楔壓坯料的密度、硬度變化曲線接近水平線，坯料的相對密度達99 . 7 % ，抗拉強度_ b = 408mpa ，屈服強度_ （ 0 . 2 ） = 289mpa ，延伸率= 13 . 6 % ;對比其它的壓制溫度，在450楔形壓制的坯料組織均勻，孔洞及顆粒邊界基本消失，顆粒之間冶金結合良好。The relative density of the sample has reached as high as 97. 4 % of fully dense. the mean micro hardness has reached hv496. 3. the fractography of the fracture section of the tensile sample was characteristic of dimple typically which indicated that the fracture belong to ductile fracture
；試樣相對密度可以達到理論值的97 . 4 ；硬度方面由於激光立體成形工藝的特點，最後幾層的硬度比開始時的高，平均硬度達到了hv496 . 3 ；拉伸試樣的斷口形貌具有典型的韌窩特徵，屬于延性斷裂。Results show that the high aluminum zinc base alloy za27 alloyed by si has an overall higher hardness and tensile strength ; mn can improve alloy ' s hardness and at the same time reduce the elongation. when the content of mn is 1. 5wt. %, the hardness of the alloy is the highest but the elongation lowest
試驗結果表明，加si的高鋁鋅基合金za27總體上硬度、抗拉強度均較高； mn的加入有助於za27合金硬度的提高，加1 . 5 mn時合金硬度最高；試驗條件下， mn的加入量超過0 . 8時，其延伸率下降，在1 . 5時達到最低值。Finally, the paper provides the theoretic method suitable for calculating the tensioning elongation of the tendons, and checks the method as well by measurement data from several engineering projects
同時，分析了預應力束的束效應引起的鋼絞線的重新排列，以及彎曲段等效徑向荷載產生的徑向位移，最後得出了適合小曲率半徑預應力束張拉延伸量計算的理論方法，並通過多個工程實測數據進行校驗。It has been put forward that quality index of geotgrids should be the tensile strength, strain, and strain rate, and the sizes of geogrid " s sample for strain test are suggested ; the tensile strength of geogrid increases with increase of width of test sample, while the strain rate decreases as the pullout rate, length of sample increases, and when the pullout speed is larger, the strain rate varies with the width and length of sample, otherwise, the strain rate has little to do with them. 2
提出了將抗拉強度、延伸率和延伸速率作為土工格柵的質量控制指標，並將士工格柵延伸速率納入某些工程設計參數；建議土工格柵的延伸率測試試樣寬度至少3根，長度至少3節；並發現土工格柵抗拉強度隨寬度增加而遞增，土工格柵延伸率隨拉伸速率、試樣長度增加而減小，當拉伸速率較大時，延伸速率與試樣長度、寬度均有關；反之則基本無關。分享友人