激光烧结制备藕状316不锈钢多孔材料的微孔结构特征

ACTA AERONAUTICAET ASTRONAUTICA SINICA ›› 2007, Vol. 28 ›› Issue (5): 1236-1241.

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Micropore Structures of Lotustype Porous 316 Stainless Steel Prepared by Laser Sintering

Shen Yifu,Wu Peng,Gu Dongdong,Li Yufang

Department of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics

Received:2006-09-04 Revised:2007-12-27 Online:2007-10-15 Published:2007-10-15
Contact: Shen Yifu

Abstract

Abstract:

Laser sintering of a mixed powder which consisted of 316 stainless steel, H3BO-3 and KBF-4 was carried out to prepare lotustype porous materials. The porosity of samples was measured and the characteristics of pores were investigated by scanning electron microscopy (SEM). The results show that a porous lotustype structure with fine connectivity and distribution uniformity of pores can be fabricated at a lower scan speed. With increasing the scan speed, the pores’ tendency to incline towards the scan direction becomes more pronounced.

Key words: non-traditional , machining, , laser , sintering, , lotustype , porous , structure, , 316 , stainless , steel, , porosity

CLC Number:

V252

Shen Yifu;Wu;Peng Gu;Dongdong;Li Yufang. Micropore Structures of Lotustype Porous 316 Stainless Steel Prepared by Laser Sintering[J]. ACTA AERONAUTICAET ASTRONAUTICA SINICA, 2007, 28(5): 1236-1241.

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Micropore Structures of Lotustype Porous 316 Stainless Steel Prepared by Laser Sintering

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