Surface self-densification in boron alloyed austenitic stainless steel and its effect on corrosion and impact resistance

被引：13

作者：

Menapace, C. ^{[1
]}

Molinari, A. ^{[1
]}

Kazior, J. ^{[2
]}

Pieczonka, T. ^{[3
]}

机构：

[1] Univ Trent, Dept Mat Engn & Ind Technol, I-38050 Trento, Italy

[2] Carcow Univ Technol, PL-31864 Krakow, Poland

[3] AGH Univ Sci & Technol, Dept Met & Mat Engn, Phys & Powder Met Res Unit, PL-30059 Krakow, Poland

来源：

POWDER METALLURGY | 2007年 / 50卷 / 04期

关键词：

boron; stainless steel; corrosion resistance;

D O I：

10.1179/174329007X205028

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

A boron alloyed AISI 316L, sintered in pure hydrogen at 1250 degrees C, was investigated to study the effect of the microstructure, with particular reference to the near full dense and boride free surface layers, on corrosion resistance and impact properties. The near full dense and homogeneous austenitic surface layer results from the flow of the liquid towards the bulk of the specimens during sintering. It significantly improves the corrosion resistance, while impact properties are strongly influenced by the bulk microstructure, where the boride network creates favourable conditions for both nucleation and propagation of crack.

引用

页码：326 / 335

页数：10

共 23 条

[1]

*ASTM INT, G10289 ASTM

[2]

BECKER BS, 1998, P 1998 PM WORLD C PO, V2, P409

[3]

German RM., 1985, LIQUID PHASE SINTERI

[4] Activated sintering of P/M duplex stainless steel powders [J].

Kazior, J ;

Nykiel, M ;

Pieczonka, T ;

Puscas, TM ;

Molinari, A .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2004, 157 :712-717

[5]

Kazior J., 2003, P EUR PM2003, V1, P281

[6] Theoretical analysis of liquid-phase sintering: Pore filling theory [J].

Lee, SM ;

Kang, SJL .

ACTA MATERIALIA, 1998, 46 (09) :3191-3202

[7] Liquid phase sintering of iron-carbon alloys with boron additions [J].

Liu, J ;

Cardamone, A ;

Potter, T ;

German, RM ;

Semel, FJ .

POWDER METALLURGY, 2000, 43 (01) :57-61

[8]

MADAN DS, 1986, PROG POWDER METALL, V42, P307

[9]

Molinari A, 1998, INT J POWDER METALL, V34, P21

[10] Dilatometry study of the sintering behavior of boron-alloyed Fe-1.5 pct Mo powder [J].

Molinari, A ;

Pieczonka, T ;

Kazior, J ;

Gialanella, S ;

Straffelini, G .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2000, 31 (06) :1497-1506

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