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工学材料科学与工程
判断题The ionization potential increase as the atomic numbers of the elements increase in a given periodic group.
判断题所谓临界晶核，就是体系自由能的减少完全抵偿表面自由能的增加时的晶胚大小。
判断题在正交晶系中(011)面是平行于a轴的晶面。
判断题Ferrous metals include iron and alloys ofat least 50/% iron.
判断题Isotopes are atoms of an element that contain the same number of protons but different numbers of neutrons.
判断题Not all materials produce stress-strain diagrams on which there is a clear indication of the start of yield as the load is increased. In such case, off set yield strength is expressed as the elastic limit.
判断题要提高奥氏体不锈钢的强度，可以通过淬火得到马氏体来强化。
判断题层错是由于晶体点阵中局部存在多余的半原子面的结果。
判断题Polymers absolutely cannot serve as conductors because their electrons are locked in covalent bonding.
判断题熔体在冷却过程中，过冷度越大总的析晶速率也越大。
判断题固溶体合金无论在平衡或不平衡凝固过程中，液-固界面上液相成分沿着液相平均成分线变化
判断题晶体结构中存在着无数多根平移轴。
判断题一般金属结晶时，形核率随着过冷度的增加而增加，超过某一极大值后，出现相反的变化。
判断题位错线的滑移和攀移都可以使金属晶体在滑移面产生塑性变形。
判断题Steelmaking is made possible because ofthe formation of a substitutional solid solution.
判断题两侧晶粒位相差小于20的称为大角度晶界。
判断题三元合金两相平衡时，有两个自由度，所以两个平衡相的成分都可以独立改变。
判断题位错攀移是螺位错的一种运动方式。
判断题相变过程是一个物理过程。
判断题In primary cells, when the reaction ends