| Effects of laser pulse energy on surface microstructure and mechanical properties of high carbon steel | |
| Xiong Yi; He Tian-tian; Li Peng-yan; Chen Lu-fei; Ren Feng-zhang; Volinsky, Alex A.; xy_hbdy@163.com | |
| 2015 | |
| Source Publication | JOURNAL OF CENTRAL SOUTH UNIVERSITY
 |
| ISSN | 2095-2899 |
| Volume | 22Issue:12Pages:4515-4520 |
| Abstract | Surface microstructure and mechanical properties of pearlitic Fe-0.8%C (mass fraction) steel after laser shock processing (LSP) with different laser pulse energies were investigated by scanning electron microscopy(SEM), transmission electron microscopy(TEM), X-ray diffraction(XRD) and microhardness measurements. After LSP, the cementite lamellae were bent, kinked and broken into particles. Fragmentation and dissolution of the cementite lamellae were enhanced by increasing the laser pulse energy. Due to the dissolution of carbon atoms in the ferritic matrix, the lattice parameter of alpha-Fe increased. The grain size of the surface ferrite was refined, and the microstructure changed from lamellae to ultrafine micro-duplex structure (ferrite (alpha)+cementite (theta)) with higher laser pulse energy, accompanied by the residual stress and microhardness increase. |
| description.department | [xiong yi ; li peng-yan ; chen lu-fei ; ren feng-zhang] henan univ sci & technol, sch mat sci & engn, luoyang 471023, peoples r china ; [xiong yi ; ren feng-zhang] collaborat innovat ctr nonferrous met, luoyang 471023, peoples r china ; [he tian-tian] chinese acad sci, inst met res, shenyang 110016, peoples r china ; [volinsky, alex a.] univ s florida, dept mech engn, tampa, fl 33620 usa |
| Keyword | Pearlitic Steel Laser Shock Processing Microstructure Microhardness Residual Stress |
| Funding Organization | National Natural Science Foundation of China [50801021, 51201061]; Henan Province Program for Science and Technology Innovation Excellent Talents, China [144200510009]; Science and Technology Project of Henan Province, China [152102210077]; Science and Technology Innovation Team of Henan University of Science and Technology, China [2015XTD006] |
| Indexed By | sci |
| Language | 英语 |
| WOS ID | WOS:000366635500002 |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.imr.ac.cn/handle/321006/74786 |
| Collection | 中国科学院金属研究所 |
| Corresponding Author | xy_hbdy@163.com |
| Recommended Citation GB/T 7714 | Xiong Yi,He Tian-tian,Li Peng-yan,et al. Effects of laser pulse energy on surface microstructure and mechanical properties of high carbon steel[J]. JOURNAL OF CENTRAL SOUTH UNIVERSITY,2015,22(12):4515-4520. |
| APA | Xiong Yi.,He Tian-tian.,Li Peng-yan.,Chen Lu-fei.,Ren Feng-zhang.,...&xy_hbdy@163.com.(2015).Effects of laser pulse energy on surface microstructure and mechanical properties of high carbon steel.JOURNAL OF CENTRAL SOUTH UNIVERSITY,22(12),4515-4520. |
| MLA | Xiong Yi,et al."Effects of laser pulse energy on surface microstructure and mechanical properties of high carbon steel".JOURNAL OF CENTRAL SOUTH UNIVERSITY 22.12(2015):4515-4520. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment