Temper bead welding is usually done by experiment, i.e., trial and error. This paper describes a computational weld mechanics model to compute the transient temperature and transient microstructure evolution in temper bead welds. The computed hardness from this model, is compared to measured hardness for validation. Furthermore, the effects of power per unit length, welding current, and welding speed on final hardness, are studied by designing and implementing three design-of-experiment matrices.

References

References
1.
Naval Sea Systems Technical Manual, S9221-C1-GTP-010,
1991
, “
Repair and Overhaul of Main Propulsion Boilers
,” Naval Ships Systems Engineering Station, Vol. 1, Philadelphia, Pa.
2.
Watt
,
D. F.
,
Coon
,
L.
,
Bibby
,
M. J.
,
Goldak
,
J. A.
, and
Henwood
,
C.
,
1988
, “
Modelling Microstructural Development in Weld Heat-Affected Zones
,”
Acta Metall.
,
36
(
11
), pp.
3029
3035
.10.1016/0001-6160(88)90185-X
3.
Henwood
,
C.
,
Bibby
,
M. J.
,
Goldak
,
J. A.
, and
Watt
,
D. F.
,
1988
, “
Coupled Transient Heat Transfer-Microstructure Weld Computations
,”
Acta Metall.
,
36
(
11
), pp.
3037
3046
.10.1016/0001-6160(88)90186-1
4.
Bayley
,
C.
, and
Mclaughlin
,
S.
,
2009
, “
Bead on Plate Temper Pass Study; Thermal and Microhardness Study
,” DRDC Atlantic Paper No. TM2009-215.
5.
Zienkiewicz
,
O.
, and
Taylor
,
R.
,
The Finite Element Method
, Vol. 2,
4th ed.
,
McGraw-Hill
,
New York
.
6.
Goldak
,
J.
, and
Akhlaghi
,
M.
,
2005
,
Computational Welding Mechanics
,
Springer
,
New York
.
7.
Kirkaldy
,
J.
, and
Venugoplan
,
D.
,
1983
, “
Prediction of Micro-Structure and Hardenability in Low Alloy Steels, Phase Transformation in Ferrous Alloys
,”
Proceedings of International Conference
, Oct. 4–6.
8.
Gur
,
C. H.
, and
Pan
,
J.
,
2008
,
Handbook of Thermal Process Modelling of Steels
,
CRC Press, Taylor & Francis Group
,
Boca Raton, FL
.
9.
Ashby
,
M. F.
, and
Easterling
,
K. E.
,
1982
, “
A First Report on Diagrams for Grain Growth in the Welds
,”
Acta Metall.
,
82
(
11
), pp.
1969
1978
.10.1016/0001-6160(82)90100-6
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