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  2004 

磷含量对细晶镍基GH4133合金力学性能的影响

, PP. 477-482

Keywords: ,高温合金,学性能

Full-Text   Cite this paper   Add to My Lib

Abstract:

适当磷含量可提高细晶镍基GH4133合金力学性能.采用控制热加工和热处理的方法将GH4133合金的晶粒度细化至ASTM10级.该细晶合金的最低屈服强度比晶粒度为ASTM4-5级的正常组织的合金高200MPa以上,最低断裂强度高150MPa以上.磷含量为0.140%(质量分数,下同)的细晶合金的屈服强度相对于正常磷含量(0.005%)的细晶合金又高约100MPa,断裂强度约高50MPa.镍基GH4133合金中,磷含量低于0.140%,拉伸试样均呈穿晶断裂.磷含量低于0.023%时,冲击断口呈穿晶断裂,冲击韧性高于70MJ/m2;磷含量升至0.140%时,冲击断口部分区域呈沿晶断裂,冲击韧性约降至40MJ/m2.延长GH4133合金持久寿命的最佳磷含量位于0.011%附近.结合位错与磷原子气团的相互作用讨论了上述不同载荷方式下磷对合金力学性能的影响特点.

References

[1]  Hu Z Q, Sun W R, Guo S R. Acta Metall Sin (Eng Lett), 1996; 9:443
[2]  Sun W R, Guo S R, Lu D Z, Hu Z Q. Metall Mater Trans, 1997; 28A: 649
[3]  Cao W D, Kennedy R L. In: Loria E A, ed., Superalloys 718, 625 and Various Derivatives, Warrendale, PA: TMS-AIME, 1994:463
[4]  Sun W R, Guo S R, Hu Z Q. Mater Sci Eng, 1998; A247: 173
[5]  Cao W D, Kennedy R L. In: Kissinger R D, Deye D J, Anton D L, Cetel A D, Nathal M V, Pollock T M, Woodford D A, eds., Superalloys 1996, Warrendale, PA: TMS- ??AIME, 1996:589
[6]  Sun W R, Guo S R, Lu D Z, Li Z C, Tong B Y, Hu Z Q. In: Hanada S, Zhong Z, Nam S W, Wright R N, eds., 4th Pacific Rim Int Conf on Advanced Materials and Processing (PRICM4) , The Japan Institute of Metals, 1996:2719
[7]  Song H W. PhD Thesis, Institute of Metal Research, The Chinese Academy of Sciences, Shenyang, 1999(宋洪伟.中国科学院金属研究所博士学位论文,沈阳,1999)
[8]  Hu Z Q, Sun W R, Guo S R, Lu D Z. J Iron Steel Res, 2002; (Spec Issue): 337. In: Xin P, Hu L, Ju D Y, eds., The 3rd Int Forum on Advanced Materials Science and Technology, Anshan, Anshan University of Science and Technology, 2002
[9]  Editing Board of China Aeronautical Materials Handbook. China Aeronautical Materials Handbook. Vol.2: Wrought and Cast Superalloys. 2nd ed., Beijing: Standards Press of China, 2002:293(中国航空材料手册编辑委员会.中国航空材料手册(第2卷:变形高温合金铸造高温合金).第2版,北京:中国标准出版社,2002:293).

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133