Hot finished structural hollow sections of non - alloy and fine grain steels - part 1 : technical delivery conditions ; german version en 10210 - 1 : 2006 非合金结构钢和细晶结构钢热成型空心型件.第1部分:交
4 ) while the processing parameters are appropriate , both of the indicated techniques can fabricate ultra - fine grain materials successfully ( 4 )在合适的工艺参数下，上述两种工艺均能够获得亚微米级的超细晶材料。
With the unique self - made cooling system , the ly12 is researched through the above method and the ultra - fine grain was obtained 应用传热学和塑性力学理论分析了采用该方法制备棒状超细晶材料的力学条件和变形条件。
Wc - co cermet is a kind of tool materials of good performance . especially , the ultra - fine wc - co has both high strength and high hardness Wc - co硬质合金是一种性能优越的工具材料，尤其是超细晶wc - co材料实现了高强度和高硬度的结合。
The alloy strengthening mechanisms of solid - solution strengthening , distortion strengthening , fine - grain strengthening and deposition strengthening have been reviewed 摘要简要介绍了固溶强化、形变强化、细晶强化和沉淀强化的强化机理。
Ball hob drill head is applicable for harden rock layer , fine grain granite , and it has below 9 - grade drillability . the compressive strength is no more than 15 of pull coefficient 球齿滚刀钻头适合于坚硬岩层，细晶花岗岩，可钻性9级以上，抗压强度在普氏系数15 。
Experiment of preparation ultra - fine - crystalline and nanocrystalline metal was performed using self - developed electromagnetic impulse high - pressure rapid solidification method 使用实验室自行研制的电磁脉冲高压快速凝固装置，进行了制备超细晶、纳米晶金属的实验。
A : last , the mechanical characters of materials with refined structures are tested . it proves that both plasticity and the strength are improved 最后对获得的细晶材料进行力学性能(抗拉强度、抗压强度和延伸率)测试，与未加细化剂的合金进行比较，证明塑性和强度都有所提高。
Chen p . r . , chen x . m . , ni p . , wang w . c . et al . , 1997 , discovery of chalcopyrite daughter mineral in polyphase fluid inclusions from yanyuan porphyry copper deposit , sichuan province 朱金初，李人科，周凤英，王汝成等， 1996 ,广西栗木水溪庙不对称层状伟晶岩?细晶岩岩脉的成因讨论。
Ultrafme - grained ( ufg ) materials with submicrometer - order grain size exhibit excellent mechanical properties compared with conventional fine - grained materials as well as coarse - grained materials 与传统的细晶材料和粗晶材料相比具有亚微米尺度的超细晶( ufg )材料具有优良的机械性能。
