Numerical Investigation on Laser Transformation Hardening with Different Temporal Pulse Shapes
文献类型：期刊论文
| 作者 | Wu W(吴炜); Liang NG(梁乃刚) ; Gan CH(甘翠华)
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| 刊名 | Surface & Coatings Technology
 |
| 出版日期 | 2006 |
| 卷号 | 200期号:8页码:2686-2694 |
| 通讯作者邮箱 | wuwei@lnm.imech.ac.cn |
| ISSN号 | 0257-8972 |
| 通讯作者 | Wu, W (reprint author), Chinese Acad Sci, Inst Mech, State Key Lab Nonlinear Mech, 15 Beishuanxi Rd, Beijing 100080, Peoples R China. |
| 中文摘要 | 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. |
| 学科主题 | 力学 |
| 类目[WOS] | Materials Science, Coatings & Films ; Physics, Applied |
| 研究领域[WOS] | Materials Science ; Physics |
| 关键词[WOS] | AUSTENITE-PEARLITE TRANSFORMATION ; EUTECTOID CARBON-STEEL ; THERMAL-ANALYSIS ; SURFACE |
| 收录类别 | SCI ; EI |
| 语种 | 英语 |
| WOS记录号 | WOS:000235202100013 |
| 公开日期 | 2007-06-15 ; 2007-12-05 ; 2009-06-23 |
| 源URL | [http://dspace.imech.ac.cn/handle/311007/17155]  |
| 专题 | 力学研究所_力学所知识产出(1956-2008) |
| 推荐引用方式 GB/T 7714 | Wu W,Liang NG,Gan CH. 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.(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. |
入库方式： OAI收割
来源：力学研究所
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