Microstructural Map and Phase Chemical Compositions in Hybrid Multi-component Cast Alloys Fe-W-Mo-V-Cr-Ti-(1.5-3.5 Wt Pct)B-(0.3-1.1 Wt Pct)C

被引：3

作者：

Efremenko, V. G. ^{[1
,2
]}

Chabak, Yu. G. ^{[1
,2
]}

Lekatou, A. G. ^{[3
,4
]}

Shimizu, K. ^{[5
]}

Petryshynets, I. ^{[2
]}

Zurnadzhy, V. I. ^{[1
,2
]}

Efremenko, B. V. ^{[1
]}

Kusumoto, K. ^{[5
]}

Halfa, H. ^{[6
]}

机构：

[1] Pryazovskyi State Tech Univ, UA-49000 Dnipro, Ukraine

[2] Slovak Acad Sci, Inst Mat Res, Kosice 04001, Slovakia

[3] Univ Ioannina, Ioannina 45110, Greece

[4] Univ Res Ctr Ioannina, Inst Mat Sci & Comp, Ioannina 45110, Greece

[5] Muroran Inst Technol, Muroran 0508585, Japan

[6] Cent Met Res & Dev Inst, Helwan 12422, Cairo, Egypt

来源：

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE | 2024年 / 55卷 / 08期

关键词：

ABRASIVE WEAR BEHAVIOR; SOLID-STATE REDUCTION; FE-B ALLOYS; MECHANICAL-PROPERTIES; FRACTURE-TOUGHNESS; CHROMIUM; TITANIUM; IRON; CARBIDE; HARDNESS;

D O I：

10.1007/s11661-024-07433-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

This article presents the systematic data on the effects of carbon and boron on the microstructure and phase elemental composition of the hybrid multi-component alloys, containing (wt pct) 5W-5Mo-5V-10Cr-2.5Ti-1Mn-1Si-Fe(balance). The nominal concentrations of boron were 1.5, 2.5 and 3.5 wt pct; at each boron level, the carbon content was 0.3, 0.7 and 1.1 wt pct. The following phases were identified in the alloys: (a) (W,Mo,V)-based borocarbide M2(B,C)5 (primary particles and eutectic fibers), (b) Ti-rich carboboride M(C,B) (primary dispersions); (c) (Cr,Fe)-rich carboboride M7(C,B)3 (eutectic lamellae); (d) boroncementite M3(C,B) (eutectic plates); (e) matrix. Boron was responsible for the M2(B,C)5 formation while the M(C,B) was controlled by carbon. Boron and carbon change the eutectic carboboride type as follows: M2(B,C)5 -> M7(C,B)3 -> M3(C,B). Furthermore, B and C deplete the matrix by chromium enabling the pearlite/martensite structure instead of ferrite. A microstructural map is proposed to select the composition for a specific wear condition.

引用

页码：2756 / 2772

页数：17