Microstructure and strengthening mechanism of light beam cladding layer with iron-based self-fluxing alloy powder

被引：0

作者：

Shan, Ji-Guo ^{[1
]}

Ding, Jian-Chun ^{[1
]}

Ren, Jia-Lie ^{[1
]}

机构：

[1] Dept. of Mech. Eng., Tsinghua Univ., Beijing 100084, China

来源：

Hanjie Xuebao/Transactions of the China Welding Institution | 2001年 / 22卷 / 04期

关键词：

Iron alloys - Light - Microstructure - Powder coatings - Strengthening (metal);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The microstructure and phase structure of light beam cladding layer with iron-based self-fluxing alloy powder were studied by SEM, EDS, X-ray diffraction, microhardness analysis and Rockwell hardness analysis. The results show that the microstructure of Fe-Ni-Cr-Si-B alloy powder light beam cladding layer is composed of γ(Fe,Ni) dendrite which dissolves a lot of Cr and little B, Si, C, and (Cr,Fe)7(C,B)3+γ(Fe,Ni) eutectic among dendrite. The macrohardness of the light beam cladding layer reaches HRC 47.3, which is higher than that of spraying layer or TIG cladding layer with the same powder. The main reason of strengthening of the light beam cladding layer is the solution of Cr, Si elements of γ phase and the precipitation of high hardness (Cr,Fe)7(C,B)3.

引用

页码：1 / 4

共 50 条

[41] Fatigue strength and fracture mechanism of different post-fused thermal spray-coated steels with a Co-based self-fluxing alloy coating
Oh, Jeongseok
Komotori, Jun
Song, Jungil
INTERNATIONAL JOURNAL OF FATIGUE, 2008, 30 (08) : 1441 - 1447
[42] Controllable Preparation and Self-Lubricating Mechanism Analysis of Bilayer Porous Iron-Based Powder Metallurgy Materials
Zhang Guotao
Yin Yanguo
Tong Baohong
Zhang Xingquan
ACTA METALLURGICA SINICA, 2019, 55 (11) : 1448 - 1456
[43] Microstructure and phase composition of Fe-based self-fluxing alloy coatings formed by laser remelting and superficially modified by laser alloying with B4C particulates
Feldshtein, E. E.
Kardapolava, M. A.
Dyachenko, O. V.
KOVOVE MATERIALY-METALLIC MATERIALS, 2015, 53 (03): : 155 - 159
[44] Effect of nano-ZrO2 protective layer on the microstructure and surface property strengthening mechanism of underwater wet laser Fe-based cladding layer
Wang, Junyan
Cui, Xiufang
Zhao, Yao
Zhang, Ye
Fan, Xiaotian
Jiang, Jinzhe
Jin, Guo
MATERIALS CHARACTERIZATION, 2023, 206
[45] Synthesis of amorphous coating by laser cladding multi-layer Co-based self-fluxed alloy powder
Shu, Fengyuan
Tian, Ze
Zhao, Hongyun
He, Wenxiong
Sui, Shaohua
Liu, Bin
MATERIALS LETTERS, 2016, 176 : 306 - 309
[46] Mechanical Activation of Self-Propagating High Temperature Synthesis in Titanium, Carbon Black and Iron-based Alloy Powder Mixtures
Baranovskiy, A. V.
Pribytkov, G. A.
Krinitcyn, M. G.
Homyakov, V. V.
Dankovcev, G. O.
PROCEEDINGS OF THE INTERNATIONAL CONFERENCE ON ADVANCED MATERIALS WITH HIERARCHICAL STRUCTURE FOR NEW TECHNOLOGIES AND RELIABLE STRUCTURES 2019, 2019, 2167
[47] Different Approaches to the Investigation and Testing of the Ni-Based Self-Fluxing Alloy Coatings-A Review. Part 2: Microstructure, Adhesive Strength, Cracking Behavior, and Residual Stresses Investigations
Simunovic, Katica
Saric, Tomislav
Simunovic, Goran
TRIBOLOGY TRANSACTIONS, 2014, 57 (06) : 980 - 1000
[48] Microstructure and properties of Ni-Ti based gradient laser cladding layer of Ti6Al4V alloy by laser powder bed fusion
Liu, Yueyang
Yang, Yang
Chen, Chao
ADDITIVE MANUFACTURING, 2024, 79
[49] Flexural strengthening of large-scale reinforced concrete beams using near-surface -mounted self-prestressed iron-based shape-memory alloy strips
El-Hacha, Raafat
Rojob, Hothifa
PCI JOURNAL, 2018, : 55 - 65
[50] Slag-Free Mechanism, Microstructure Evolution, and Wear Resistance of Self-Shielded Metal-Cored Wire A type of Fe-Cr-C-B-Mn iron-based, slag-free, self-shielded metal-cored wire was established
Liu, D. S.
Long, W. M.
Zhou, W.
Wu, Y. C.
Wei, P.
WELDING JOURNAL, 2021, 100 (08) : 259 - 268

← 1 2 3 4 5 →