体相

• The compositions of usual elements and rare earth elements and inclusions of corundum megacrysts related to alkali basalt in changle , shandong province , are analyzed . in the main parts of corundum megacrysts are a large number of fluid - melting inclusions , zircon , ta - columbite inclusions , and in the central crystal core are a large number of melting inclusions . the corundum megacrysts were formed in different periods and different physical chemistry conditions . the crystal core was formed in magma system , and the main parts were formed in inhomogeneously geochemical conditions in which magam and fluid phases coexisted
  分析山东昌乐与碱性玄武岩有关的刚玉巨晶不同部位的常量元素、稀土元素及包裹体组成.刚玉巨晶的主体以大量流体?熔体包裹体、锆石、铌(钽)铁矿包裹体为主，而巨晶中的“晶核”部位则以大量的熔体包裹体为主，反映研究区的刚玉巨晶是在不同的阶段形成的.刚玉“晶核”以及“铜皮刚玉”形成于熔体相为主的体系中，而主体刚玉则形成于熔体?流体过渡的急剧变化的不均一的地球化学环境中
• It is indicated that the relaxation of elastic energy stored during the forward martensitic transformation is responsible for the expansion of transformation hysteresis , which is in good agreement with experimental results associated with the hysteresis enlargement by deformation of niti , niti - based and cualni shape memory alloys
  结果表明，塑性变形产生的位错以及变形的第二相颗粒对逆马氏体相变温度的提高具有一定作用，但塑性变形导致应变能释放才是形变提高形状记忆合金相变滞后的主导因素。
• 3 ) a novel martensitic transformation kinetics model for sma is proposed based on the phenomenological description of the martensitic transformation heat flow - temperature curve and on the linear relationship between the partial derivatives with respect to the temperature of martensite fraction and of gbbis free energy . numerical simulations by utilizing the proposed model are closer to experimental results than those from other models
  3 )基于对马氏体相变热流-温度实验曲线的唯象模拟，以及马氏体体积分数与热力势对温度偏导数之间的线性关系，建立了一种新的马氏体相变动力学模型，并与其他模型及实验结果进行了比较。
• The thermal storage and heat transfer of pcm wallboards were studied , the ‘ decrement factor ’ and ‘ time lag , which are used to evaluate the material with constant thermo physical properties , can ’ t be used to evaluate the pcm wallboards , because the melting or freezing of pcm can charge or discharge high latent heat during a narrow temperature range , which causes different temperature distribution in the walls and different surface heat flow into the indoor environment
  探讨了墙体相变建筑构件的蓄热、传热特性。与常物性建筑构件对室外温度波动衰减(用衰减系数表示)和延迟(用延迟时间表示)的特性不同,相变建筑构件在较窄的范围内有大量潜热的吸收或释放,从而显著的影响其温度分布和表面向室内的传热速率。
• On the surface of annealed 45 steel , as the pearlite in it contains cementite phase and has high crystal boundary density , the nucleation and growth of deposits prefer to occur at the pearlite at the beginning during depositioa the coating exists in form of nano - polycrystal layers composed by gathering of nano - sized crystals
  在退火态45钢表面，由于珠光体组织中含有渗碳体相且具有比较高的晶界密度，因而在沉积初期镀层优先在此处形核和生长；镀层在基体表面是以纳米尺度的晶粒聚集在一起形成的聚晶体形式存在的。
• The ultrasonic quenching of medium carbon alloy high strength steel 35crmnsi was conducted , using h66025t ultrasonic generator . the result showed the mertensite lath was fined obviously and the nucleation rate was improved . it proved the theory that the propagation of elastic wave in austenite can promote the nucleation of martensitic transformation
  采用h66025t超声波发生仪，对中碳合金高强度钢35crmnsi进行超声波淬火，发现马氏体板条明显细化，提高了马氏体相变形核率，证实了弹性波在奥氏体中传播促进马氏体相变形核理论。