2.1.1、溶化温度范围
1364~1424℃
2.1.2、热导率
表2-1
θ/℃ |
100 |
200 |
300 |
400 |
500 |
600 |
700 |
800 |
900 |
λ/(W/(m.C)) |
14.2 |
15.9 |
17.2 |
18.8 |
20.5 |
22.2 |
23.9 |
25.5 |
27.6 |
2.1.3、线膨胀系数
线膨胀系数见表2-2。
表2-2
θ/℃ |
20~100 |
20~200 |
20~300 |
20~400 |
20~500 |
20~600 |
20~700 |
20~800 |
20~900 |
a/10-6℃C-1 |
15.37 |
16.09 |
16.31 |
16.84 |
17.58 |
18.06 |
18.74 |
19.62 |
20.45 |
优质合金线膨胀系数见表2-3
表2-3
θ/℃ |
20~100 |
20~200 |
20~300 |
20~400 |
20~500 |
20~600 |
20~700 |
20~800 |
20~900 |
a/10-6℃C-1 |
15.7 |
16.0 |
16.5 |
16.8 |
17.3 |
17.5 |
17.9 |
19.1 |
19.7 |
ρ=7.93g/cm3
电阻率见表2-4。
θ/℃ |
20 |
100 |
200 |
300 |
400 |
ρ/(10-6 Ω.M) |
0.914 |
0.985 |
1.018 |
1.074 |
1.119 |
表2-4续
θ/℃ |
500 |
600 |
700 |
800 |
900 |
ρ/(10-6 Ω.M) |
1.135 |
1. |
1.018 |
1.074 |
1.119 |
2.5.1、抗氧化性能
合金在空气介质中试验100~300h后氧化速率表2-5。
表2-5
θ/℃ |
氧化速率/(g/(m2栠)) |
氧化速率/(g/(m2栠)) |
氧化速率/(g/(m2栠)) |
θ/℃ |
氧化速率/(g/(m2栠)) |
氧化速率/(g/(m2栠)) |
氧化速率/(g/(m2栠)) |
100h |
200h |
300h |
100h |
200h |
300h |
||
650 |
0.00417 |
0.00276 |
0.00234 |
850 |
0.11630 |
0.12386 |
0.09672 |
750 |
0.03250 |
0.07216 |
0.08322 |
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