Microhardness and Structure Distribution over the Layer of a High-Hardness Heat-Resitant Alloy Formed by Multi-Layer Plasma Surfacing in a Nitrogen Medium

被引：0

作者：

Malushin, N. N. ^{[1
]}

Romanov, D. A. ^{[1
]}

Kovalev, A. P. ^{[2
]}

Baschenko, L. P. ^{[1
]}

Semin, A. P. ^{[1
]}

Gromov, V. E. ^{[1
]}

机构：

[1] Siberian State Ind Univ, Novokuznetsk, Russia

[2] AO EVRAZ West Siberian Met Plant EVRAZ ZSMK AO, Novokuznetsk, Russia

来源：

RUSSIAN PHYSICS JOURNAL | 2021年 / 64卷 / 07期

关键词：

plasma surfacing; protective alloying nitrogen medium; heat-resistant metal; distribution; microhardness; structure; surfacing and structure defects;

D O I：

10.1007/s11182-021-02452-w

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

The distributions of microhardness, chemical composition and structure over the thickness and surface of a layer formed from heat resistant steel (R2M8Y Grade) by plasma surfacing in a protective-alloying nitrogen medium are studied. It is found out that the surfacing technology and the surface-alloyed material allow forming a high-quality alloy without any cracks, pores, slag inclusions and macro- and microstructure defects. It is determined that the surface-alloyed layer consists of pearlite grains, with carbonitrides (\Me6NC and AlN) based on iron, tungsten, chromium, molybdenum and aluminum distributed along the grain boundaries and intersections.

引用

页码：1254 / 1260

页数：7

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