| Effects of sintering atmosphere on the microstructure and mechanical property of sintered 316L stainless steel |
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| 作者姓名： | LISontg-lin |
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| 作者单位： | StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity，StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity，StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity，StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity，StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity，StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity，StateKeyLaboratoryforPowderMetallurgyCentralSouthUniversity Changsha410083，China，Changsha410083，China，Changsha410083，China，Changsha410083，China，Changsha410083，China，Changsha410083，China，Changsha410083，China |
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| 基金项目： | TheNationalAdvancedMaterialsCommitteeofChina(No .2 0 0 1AA3 3 70 5 0 ) |
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| 摘 要： | 1 ＩＮＴＲＯＤＵＣＴＩＯＮＰｒｅｓｓ/ｓｉｎｔｅｒ (Ｐ/Ｍ )ｉｓａｃｏｍｍｏｎｌｙｕｓｅｄｔｅｃｈｎｏｌｏｇｙｆｏｒｆａｂｒｉｃａｔｉｏｎｏｆｐｏｗｄｅｒｍｅｔａｌｌｕｒｇｙ31 6Ｌｓｔａｉｎｌｅｓｓｓｔｅｅｌ.Ｙｅｔ,ｔｈｅａｓ ｓｉｎｔｅｒｅｄｄｅｎ ｓｉｔｙｉｓａｂｏｕｔ 90 %ｏｆｔｈｅｏｒｅｔｉｃａｌｄｅｎｓｉｔｙｗｉｔｈｌｏｗｍｅｃｈａｎｉｃａｌｐｒｏｐｅｒｔｉｅｓ.ＳｏｍｅｒｅｓｅａｒｃｈｅｒｓｓｔｕｄｉｅｄａｄｄｉｎｇｅｌｅｍｅｎｔｓｌｉｋｅＢ ,Ｐ ,Ｓｉ,Ｃｕ ,Ａｌ,ｅｔｃ .ｔｏｆｏｒｍｌｏ…
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| 收稿时间： | 15 May 2002 |
Effects of sintering atmosphere on the microstructure and mechanical property of sintered 316L stainless steel |
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| Li Song-lin , Huang Bai-yun , Li Yi-min , Liang Shu-quan , Li Du-xin , Fan Jin-lian and Jiang Feng.Effects of sintering atmosphere on the microstructure and mechanical property of sintered 316L stainless steel[J].Journal of Central South University of Technology,2003,10(1):1-6. |
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| Authors: | Li Song-lin Huang Bai-yun Li Yi-min Liang Shu-quan Li Du-xin Fan Jin-lian and Jiang Feng |
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| Affiliation: | (1) State Key Laboratory for Powder Metallurgy, Central South University, 410083 Changsha, China |
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| Abstract: | In the present work, N2, N2 +H2, Ar and Ar+-H2, were used as the sintering atmosphere of Metal Injection Molded 316L stainless steel respectively. The influences of the sintering atmospheres on C, O, N contents of the sintered specimens, sintered density, grain morphology and mechanical properties were investigated. The results show that C, O, N contents of the sintered specimens can be controlled in permitted low values. The ultimate tensile strength and elongation of the specimen sintered in N2 +H2 atmosphere are 765 MPa and 32% respectively. Using Ar and Ar+ H2 as the sintering atmosphere, the density of the sintered specimens is 98% of the theoretical density; the pores are uniformly distributed as small spherical shape and the grain size is about 50 μm. The mechanical properties of the specimen, i.e. ultimate tensile strength 630 MPa, yield strength 280 MPa, elongation 52%, HRB 71, are much better than those of the American Metal Powder Industries Federation(MPIF) 35 Standard after being sintered in Ar+ H2. |
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| Keywords: | powder metallurgy 316L stainless steel sintering microstructure mechanical property |
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