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Low Temperature Mechanical Properties Of Copper and Selected ...

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Impact Energy of Cu-Al-Ni (Nickel Aluminum Bronze)<br />

TEMPERATURE, °F<br />

-460-400 -300 -200 -100 0 100 200 3OO 4OO 50O<br />

80<br />

CURVE<br />

NO.<br />

MATERIAL AND T-EST PARAMETERS<br />

Cu<br />

Zn<br />

COMPOSITION (weight*)<br />

Sn At Ni Other<br />

REF<br />

NO.<br />

1<br />

S<strong>and</strong> cast -0.03fcmm. G. S. - RB = 93. Charpy V -notch,<br />

•ample* fractured completely, sample contained in paper<br />

boat for -4Z3T test*.<br />

Bal<br />

10.0<br />

5,2<br />

3. 4Fe, 0. 3Mn<br />

1<br />

/[75oJ Annealed<br />

75a<br />

Annealed at 900 'C - quenched. l»od.<br />

92.3<br />

1.7<br />

5.9<br />

75<br />

75b<br />

Annealed at 900 'C - quenched - then reheated 2 hrs. at<br />

550'C. I*od.<br />

92. 3<br />

1.7<br />

5.9<br />

75<br />

60<br />

148*<br />

Annealed 1150'F - "quickly" cooled, grade 45. Izod cam<br />

ple. 3te.t./temp.<br />

81.2 0. 1<br />

10. 1<br />

4.8<br />

3.0Fe. O.SMn<br />

148<br />

0. 1<br />

10. 1<br />

4.8<br />

3.0Fe, O.SMn<br />

148<br />

cooling, grade 45. Izod sample, 3 tests/temp.<br />

148c<br />

Heated 1650 T - water quenched - then aged at 1200'F -<br />

air cooled, grade 45. Itod sample, 3 t**ts/temp.<br />

81. 2<br />

0. 1<br />

10.1<br />

4.8<br />

3.0Fe, O.SMn<br />

148<br />

[75t>] Aged<br />

14Bd<br />

Carbon arc welded, nominal weld composition listed,<br />

grade 45. Uod sample, 3 tests/temp.<br />

82.4<br />

8.8<br />

4. 6<br />

3.0Fe. O.SMn,<br />

0. 5Si<br />

148<br />

40<br />

320b<br />

Hot forged. Izod, held 30 minute* at temp, prior to test.<br />

88.2<br />

9.9<br />

1.5<br />

0. 3Fe<br />

320<br />

320c<br />

Hot forged. Izod, held 30 minute* at temp, prior to test.<br />

inch K 1/4 inch.<br />

87.7<br />

80.2<br />

9.3<br />

2.0<br />

l.OFe<br />

320<br />

329<br />

30<br />

/[320c]<br />

/Hot Forget/<br />

329b<br />

Gravity die cast. Notched specimen ^ 60 X 10 X 10mm. -<br />

V notch: 2mm. deep with 0.25mm. root radius.<br />

80.2<br />

9. 5<br />

5.0<br />

5.2Fe<br />

329<br />

20<br />

10<br />

100 200 300 400 500<br />

TEMPERATURE, °K<br />

Fatigue Behavior of Cu-Al-Ni (Nickel Aluminum Bronze)<br />

CURVE<br />

NO.<br />

84<br />

MATERIAL AND TEST PARAMETERS<br />

Smooth samples, rotating beam (R. R.Moore) - 12,000<br />

Cu<br />

SI. 8<br />

COMPOSITION (weight%)<br />

Zn Sn At<br />

9. 9<br />

Ni<br />

4. 7<br />

Other<br />

2. 9Fe, 0. 7Mn<br />

REF<br />

NO<br />

84<br />

aoxio3<br />

70<br />

Room Temptroture<br />

I24a<br />

As forged, room temp. : U. T. S. = 116.000 psi - Y. S. =<br />

73, 500 psi (0. 1% offset) - Brinell hardness = 226. Bar<br />

sample - 0.275 inch diam. , rotating beam - 2200 c.p.m.<br />

79.8<br />

9.7<br />

5.0<br />

5. 4Fe<br />

124<br />

124b<br />

3% salt in HaO atmosphere produced by spraying sample<br />

79. 0<br />

9.7<br />

5.0<br />

5.4Fe<br />

124<br />

60<br />

\<br />

\<br />

\<br />

eg 40<br />

UJ<br />

a:<br />

30<br />

Forged<br />

20<br />

As Forged-<br />

10<br />

I0 5<br />

io« to7 10*<br />

FATIGUE LIFE, cycles<br />

261-278O-67—10 139

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