Selective laser sintering of single-phase powder Cr-V tool steel

被引：16

作者：

Kovalev, AI

Mishina, VP

Wainstein, DL

Titov, VI

Moiseev, VF

Tolochko, NK

机构：

[1] Surface Phenomena Res Grp, Inst Phys Met, Moscow 107005, Russia

[2] Russian Acad Sci, Inst Met, Moscow 117911, Russia

[3] Moscow State Technol Univ, STANKIN, Moscow 111472, Russia

[4] Natl Acad Sci Belarus, Inst Tech Acoust, Vitebsk 210717, BELARUS

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2002年 / 11卷 / 05期

关键词：

powder tool steel; rapid prototyping; selective laser sintering;

D O I：

10.1361/105994902770343719

中图分类号：

T [工业技术];

学科分类号：

08 [工学];

摘要：

Presented is positive experience from selective laser sintering (SLS) of cylindrical steel specimens (3.0% C, 3.0% Cr, 1.0% Si, 12.0% V, Fe balance) 30 mm long and 5 rum in diameter by rapid prototyping. It was demonstrated that monolithic steel material could be successfully fabricated by this technology. Differential thermal analysis (DTA), scanning electron microscopy (SEM), and x-ray diffractometry (XRD) were used to study the microstructure, phase, and chemical composition of the source material and obtained specimens. Low-melting cementite-based eutectic was found to provide the liquid phase sintering of powder tool steel. The porosity of the green sintered specimens did not exceed 5%. The mean. hardness value of sintered specimens was 825 HV.

引用

页码：492 / 495

页数：4