全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
金属学报  2006 

激光快速成形过程中316L不锈钢显微组织的演变

, PP. 361-368

Keywords: 激光快速成形,不锈钢,凝固,组织

Full-Text   Cite this paper   Add to My Lib

Abstract:

对316L不锈钢在激光快速成形过程中的凝固行为和组织形成进行了系统考察,发现,成形件呈现全?奥氏体结构,其组织主要由从基体连续外延生长的细长列状枝晶组成,并显示较强的晶体取向性,其(100)晶向基本平行沉积方向,仅在顶部出现了一薄层转向枝晶层,而在成形件中出现的层带结构并未影响不同熔覆沉积层之间组织生长和取向的连续性,并采用最高界面生长温度判据对激光快速成形中的相形成规律进行了分析,并结合平界面稳定性分析,枝晶生长理论和我们所发展的列状晶/等轴晶转变模型对成形件中的层带形成,外延列状晶生长特性进行了较为系统的研究,并与实验结果得到了合理的吻合。

References

[1]  Lewis G K, Nemec R B, Milewski J O, Thoma D L, Barbe M R, Cremers D A. In: Proc ICALEO '94. Orlando: Laser Institute of America, 1994: 17
[2]  Keicher D M, Smugeresky J E, Romero J A, Griffith M L, Harwell L D. Proc SPIE, 1997; 2993: 91
[3]  Schlienger E, Dimos D, Griffith M, Michael J, Oliver M, Romero T, Smugeresky J. In: Proc 3rd Pacific Rim Int Conf on Advanced Materials and Processing, Vol I. War-randale: TMS, 1998: 1581
[4]  Mazumder J, Schifferer A, Choi J. Mater Res Innovat, 1999; 3: 118
[5]  Huang W D. Geng X G, Zhou Y H. J Cryst Growth, 1993; 134: 105
[6]  Lin X, Huang W D, Feng J, Li T, Zhou Y H. Ada Mater, 1999; 47: 3271
[7]  Lu S Z, Hunt J D, Gilgien P, Kurz W. Ada Metall Mater, 1994; 42: 1653
[8]  Lin X, Li Y M, Wang M, Feng L P, Chen J, Huang W D. Sci Chin, 2003; 46E: 475q
[9]  Link G R, Fessler J, Nickel A, Prinz F. Mater Manuf Process, 1992; 13: 263
[10]  Gaumann M, Henry S, Cleton F, Wagniere J D, Kurz W. Mater Sci Eng, 1999; A271: 232
[11]  Li Y M, Yang H O, Lin X, Huang W D, Li J G, Zhou Y H. Mater Sci Eng, 2003; A360: 18
[12]  Zhang C L. Master Thesis, Beihang University, 2002 (张长利.北京航空航天大学硕士学位论文, 2002)
[13]  Zhang Y Z, Xi M Z, Gao S Y, Shi L K. J Mate Proc Technol, 2003; 142: 582
[14]  Zhong M L, Liu W J, Ning G G, Yang L, Chen Y X. J Mater Process Technol, 2004; 147: 167
[15]  Wu X H, Liang J, Mei J F, Mitchell C, Goodwin P S, Voice W. Mater Design, 2004; 25: 137
[16]  Banerjee R, Collins P C, Genc A, Fraser H L. Mater Sci Eng, 2003; A358: 343
[17]  Banerjee R, Collins P C, Bhattacharyya D, Banerjee S, Fraser H L. Acta Mater, 2003; 51: 3277
[18]  Rappaz M, David S A, Vitek J M, Boatner L A. Metall Trans, 1989; 20A: 1125
[19]  Kurz W, Fisher D J. Fundamentals of Solidification. 3rd edition, Aedermansdorf, Switzerland: Trans Tech Publications, 1992
[20]  Li Y M, Liu Z X, Yang H O, Lin X, Huang W D, Li J G. Aeta Metall Sin,2003;39:521 (李延民,刘振侠,杨海欧,林 鑫,黄卫东,李建国.金属学 报,2003;39:521)
[21]  Kurz W, Giovanola B, Trivedi R. Ada Metall, 1986; 34: 823
[22]  Rappaz M, David S A, Vitek J M, Boatner L A. Metall Trans, 1990; 21A: 1767
[23]  Aziz M J. J Appl Phys, 1982; 53: 1158
[24]  Boetinger W J, Corriel S R, Sekerka R F. Mater Sci Eng, 1984; 65: 27
[25]  Takeuchi S. The Properties of Liquid Metals. London: Taylor and Francis, 1973
[26]  Hunziker O. Ada Mater, 2001; 49: 4191
[27]  Langer J D. Rev Mod Phys, 1980; 52: 1

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133