Paramedr Commom o Molybdenwm Twngsten Tatanlum Niobium

Molybdenwm

Twngsten

Tatanlum

Niobium

Cromiwm

Caledwch (20 ℃)

Rhyddhad straen wedi'i anelio: >

220 (HV10)

wedi'i ailgrisialu > 160 – 180[HV10]

rhyddhad straen wedi'i anelio: >460(HV30)

wedi'i ailgrisialu > 360 (HV30)

wedi'i ddadffurfio: 120 - 220 [HV10]

wedi'i ailgrisialu: 80 - 125[HV10]

wedi'i ddadffurfio: 110 - 180 [HV10] wedi'i ailgrisialu: 60 - 110 [HV10]

180 – 250 [HV10]

Modwlws elastigedd (20 ℃)

320 [GPa]

405 [GPa]

186 [GPa]

104 [GPa]

294 [GPa]

Cyfernod ehangu thermol llinellol (20 ℃)

5.2·10-6

[m/(m·K)]

4.4·10-6

[m/(m·K)]

6.4·10-6

[m/(m·K)]

7.1·10-6

[m/(m·K)]

6.2·10-6

[m/(m·K)]

Dargludedd thermol (20 ℃)

142 [C/(m ·K)]

164

[W/(m·K)]

57.5

[W/(m·K)]

53.7

[W/(m·K)]

93.7

[W/(m·K)]

Gwres penodol (20 ℃)

0.25

[J/(g·K)]

0.13

[J/(g·K)]

0.14 [J/(g·K)]

0.27

[J/(g·K)]

0,45

[J/(g·K)]

Dargludedd trydanol (20 ℃)

17.9·106

[1/(Ω·m)]

18.2·106

[1/(Ω·m)]

8·106[1/(Ω·m)]

7.1·106[1/(Ω·m)]

7.9·106

[1/(Ω·m)]

Gwrthiant trydanol penodol (20 ℃)

0,056

[(Ω·mm2)/m]

0.055

[(Ω·mm2)/m]

0. 125

[(Ω·mm2)/]

0. 141

[(Ω·mm2)/m]

0. 127

[(Ω·mm2)/m]

Swyddogaeth gwaith electron

4,39 [eV]

4.54 [eV]

4.3 [eV]

4.3 [eV]

4,5 [eV]

Ailgrisialu

tymheredd

1100 ℃

1350 ℃

900-1450 ℃

850 – 1,300°C


Amser post: Medi 29-2019