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.
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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