Abstract
Laser transformation hardening experiments have been carried out on three model steel alloys of nominal composition Fe-0.4C, Fe-0.4C-1.0Mn, and Fe-0.4C-1.0Si (wt-%). A 1 kW continuous wave laser with a near Gaussian beam and a 5 kW continuous wave laser fitted with a beam integration device have been employed. Thus, it has proved possible to isolate the effects of alloy chemistry and beam mode on the kinetics of the hardening process. The dimensions of the hardened zones have been characterised and the results compared with calculations made using process models. It is shown that the results from experiment and theory are in broad agreement. Hardened zones resulting from the uniform source had a larger width/depth ratio than those resulting from the Gaussian source, although the effect was not as enhanced as suggested by theory. A comparison of the Fe-C, Fe-C-Mn. and Fe-C-Si specimens revealed that manganese and silicon increased the width of the transformed zone, and that this effect was more significant at higher processing speeds.
| Original language | English |
|---|---|
| Pages (from-to) | 109-118 |
| Number of pages | 10 |
| Journal | Materials Science and Technology |
| Volume | 15 |
| Issue number | 1 |
| DOIs | |
| Publication status | Published - Jan 1 1999 |
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All Science Journal Classification (ASJC) codes
- Materials Science(all)
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering
Cite this
Laser transformation hardening of steel : Effects of beam mode, beam size, and composition. / Reed, R. C.; Shen, Z.; Robinson, J. M.; Akbay, Taner.
In: Materials Science and Technology, Vol. 15, No. 1, 01.01.1999, p. 109-118.Research output: Contribution to journal › Article
}
TY - JOUR
T1 - Laser transformation hardening of steel
T2 - Effects of beam mode, beam size, and composition
AU - Reed, R. C.
AU - Shen, Z.
AU - Robinson, J. M.
AU - Akbay, Taner
PY - 1999/1/1
Y1 - 1999/1/1
N2 - Laser transformation hardening experiments have been carried out on three model steel alloys of nominal composition Fe-0.4C, Fe-0.4C-1.0Mn, and Fe-0.4C-1.0Si (wt-%). A 1 kW continuous wave laser with a near Gaussian beam and a 5 kW continuous wave laser fitted with a beam integration device have been employed. Thus, it has proved possible to isolate the effects of alloy chemistry and beam mode on the kinetics of the hardening process. The dimensions of the hardened zones have been characterised and the results compared with calculations made using process models. It is shown that the results from experiment and theory are in broad agreement. Hardened zones resulting from the uniform source had a larger width/depth ratio than those resulting from the Gaussian source, although the effect was not as enhanced as suggested by theory. A comparison of the Fe-C, Fe-C-Mn. and Fe-C-Si specimens revealed that manganese and silicon increased the width of the transformed zone, and that this effect was more significant at higher processing speeds.
AB - Laser transformation hardening experiments have been carried out on three model steel alloys of nominal composition Fe-0.4C, Fe-0.4C-1.0Mn, and Fe-0.4C-1.0Si (wt-%). A 1 kW continuous wave laser with a near Gaussian beam and a 5 kW continuous wave laser fitted with a beam integration device have been employed. Thus, it has proved possible to isolate the effects of alloy chemistry and beam mode on the kinetics of the hardening process. The dimensions of the hardened zones have been characterised and the results compared with calculations made using process models. It is shown that the results from experiment and theory are in broad agreement. Hardened zones resulting from the uniform source had a larger width/depth ratio than those resulting from the Gaussian source, although the effect was not as enhanced as suggested by theory. A comparison of the Fe-C, Fe-C-Mn. and Fe-C-Si specimens revealed that manganese and silicon increased the width of the transformed zone, and that this effect was more significant at higher processing speeds.
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UR - http://www.scopus.com/inward/citedby.url?scp=0001445268&partnerID=8YFLogxK
U2 - 10.1179/026708399773003385
DO - 10.1179/026708399773003385
M3 - Article
AN - SCOPUS:0001445268
VL - 15
SP - 109
EP - 118
JO - Materials Science and Technology
JF - Materials Science and Technology
SN - 0267-0836
IS - 1
ER -