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| Numerical Investigation on Laser Transformation Hardening with Different Temporal Pulse Shapes | |
Wu W(吴炜); Liang NG(梁乃刚) ; Gan CH(甘翠华); Wu, W (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beishuanxi Rd, Beijing 100080, Peoples R China.
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| Source Publication | Surface & Coatings Technology
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| 2006 | |
| Volume | 200Issue:8Pages:2686-2694 |
| ISSN | 0257-8972 |
| Abstract | A 3-D numerical model for pulsed laser transformation hardening (LTH) is developed using the finite element method. In this model, laser spatial and temporal intensity distribution, temperature-dependent thermophysical properties of material, and multi-phase transformations are considered. The influence of laser temporal pulse shape on connectivity of hardened zone, maximum surface temperature of material and hardening depth is numerically investigated at different pulse energy levels. Results indicate that these hardening parameters are strongly dependent on the temporal pulse shape. For the rectangular temporal pulse shape, the temperature field obtained from this model is in excellent agreement with analytical solution, and the predicted hardening depth is favorably compared with experimental one. It should be pointed out that appropriate temporal pulse shape should be selected according to pulse energy level in order to achieve desirable hardening quality under certain laser spatial intensity distribution. |
| Subject Area | 力学 |
| DOI | 10.1016/j.surfcoat.2004.11.011 |
| Indexed By | SCI ; EI |
| Language | 英语 |
| WOS ID | WOS:000235202100013 |
| WOS Keyword | AUSTENITE-PEARLITE TRANSFORMATION ; EUTECTOID CARBON-STEEL ; THERMAL-ANALYSIS ; SURFACE |
| WOS Research Area | Materials Science ; Physics |
| WOS Subject | Materials Science, Coatings & Films ; Physics, Applied |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://dspace.imech.ac.cn/handle/311007/17155 |
| Collection | 力学所知识产出(1956-2008) |
| Corresponding Author | Wu, W (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beishuanxi Rd, Beijing 100080, Peoples R China. |
| Recommended Citation GB/T 7714 | Wu W,Liang NG,Gan CH,et al. Numerical Investigation on Laser Transformation Hardening with Different Temporal Pulse Shapes[J]. Surface & Coatings Technology,2006,200,8,:2686-2694. |
| APA | 吴炜,梁乃刚,甘翠华,&Wu, W .(2006).Numerical Investigation on Laser Transformation Hardening with Different Temporal Pulse Shapes.Surface & Coatings Technology,200(8),2686-2694. |
| MLA | 吴炜,et al."Numerical Investigation on Laser Transformation Hardening with Different Temporal Pulse Shapes".Surface & Coatings Technology 200.8(2006):2686-2694. |
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| 95949.pdf（982KB） | 开放获取 | -- | View Application Full Text | |||
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