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Yttria Content ImpactOn ZHMR High Performance

Yttria Content ImpactOn ZHMR Alloy(Zirconium Hafnium Molybdenum Rare Earth Alloy) High Performance As Follows:

By the following table to study yttria content on ZHMR high performance alloys.

No.
Mo   ZrH2 HfH2 Y2O3
1
97.8
0.5
1.5
0.19
0
2
97.3
0.5
1.5
0.19
0.5
3
97
0.5
1.5
0.19
0.8
4
96.8
0.5
1.5
0.19
1
5
96.6
0.5
1.5
0.19
1.2
6
96.3
0.5
1.5
0.19
1.5

zhmr alloyThe six kinds of rare earth oxide additive amount of yttria ZHMR alloys at 800 ℃, 1000 ℃, 1200 ℃, 1400 ℃ the high temperature tensile strength and elongation of the test showed that:

At 800 ~ 1000 ℃, ZHMR alloy strength has increased significantly, and in 1.0% Y2O3, the peak intensity of the basic, but more than 1200 ℃, the strengthening effect is not obvious. ZHMR3 with increasing temperature, high temperature strength decreased much more than ZHMR6 ease, while PM-ZMR1 of σb-T relations, though more moderate, but in the 800 ~ 1000 ℃ when the high temperature strength is significantly lower. Plus yttrium oxide molybdenum alloy compared with ZHMR1 has greatly improved elongation at 100 ~ 1200 ℃ within, ξ increased from 20% to 35%.

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