介绍了应用DV - 4光电光谱仪，仅用一种测定条件，测定高合金钢中碳、硫、磷、锰、硅、铬、镍、钼、钒、钨、钛、铌、铝元素的含量的方法。
The method of measuring c, s, p, Mn, Si, Cr, Ni, Mo, V, W, ti, Nb, Al element content by DV-4 photoelectric spectroscope on one condition is introduced.
提供一种在较宽温度区间具有负热膨胀特性的镍钛铌负热 膨胀合金及其制备方法。
The invention provides a negative thermal expansion alloy of Nickel-Titanium-Niobium which has negative thermal expansion characteristics in a wider temperature range and a preparation method.
铌及铌硅化合物具有优良的力学性能，可替代现有的镍基合金超高温材料。
Niobium and niobium silicides due to their good mechanical properties, have high potential for being the high-temperature materials as a substitute for nickel alloys.
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