The Influence of Lamellar Graphite Cast Iron Annealing on Hardness and Structure

被引：1

作者：

Roucka, J. ^{[1
]}

Prochazka, J. ^{[1
]}

Kana, V ^{[1
]}

Krutis, V ^{[1
]}

Nedelova, K. ^{[2
]}

机构：

[1] Brno Univ Technol, Fac Mech Engn, Tech 2896-2, Brno 61669, Czech Republic

[2] Slevarna Heunisch Brno SRO, Zaoralova 11, Brno 62800, Czech Republic

来源：

ARCHIVES OF FOUNDRY ENGINEERING | 2019年 / 19卷 / 04期

关键词：

Welding cast iron; Annealing; Cast iron hardness; Structure stability;

D O I：

10.24425/afe.2019.129639

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

An analysis has been carried out of the influence of annealing time at the preheating temperature of 650 degrees C on the change in hardness and alloy structure of lamellar graphite cast iron in the working as well as in the laboratory conditions. This preheat temperature is common during reclaiming welding of castings with complex shapes. The changes in unalloyed cast iron EN-GM 200 to EN-GM 300 according to ISO 1690 standard and cast iron with low amount of elements such as Sn, Cu, Cr, and Mo and their combinations were assessed. It was found that the cast iron of higher strength grades has better hardness and structural stability. Cast iron alloyed with chromium or its combinations has the highest stability. In unalloyed cast iron, a partial degradation of pearlite occurs; in alloyed cast iron the structural changes are not conclusive.

引用

页码：105 / 112

页数：8

共 50 条

[31] The influence of the cast iron structure upon the hardness of brake shoes meant for the rolling sock
Socalici, A.
Pascu, L.
Popa, E.
Heput, T.
INTERNATIONAL CONFERENCE ON APPLIED SCIENCES 2014 (ICAS2014), 2015, 85
[32] The influence of cryogenic processing on wear on the impact wear resistance of low carbon steel and lamellar graphite cast iron
Slatter, T.
Lewis, R.
Jones, A. H.
WEAR, 2011, 271 (9-10) : 1481 - 1489
[33] Structure and Hardness of Cast Iron after Surface Hardening
E. N. Safonov
Metal Science and Heat Treatment, 2005, 47 : 434 - 439
[34] Structure and hardness of cast iron after surface hardening
Safonov, EN
METAL SCIENCE AND HEAT TREATMENT, 2005, 47 (9-10) : 434 - 439
[35] Image analytical characterization of graphite in grey cast iron and classification of lamellar arrangement
Ohser, J
Sandau, K
Stets, W
Gerber, W
PRAKTISCHE METALLOGRAPHIE-PRACTICAL METALLOGRAPHY, 2003, 40 (09): : 454 - 473
[36] Morphology and mechanism of cavitation degradation of gray cast iron surfaces with lamellar graphite
Riemschneider, Eduard
Bordeasu, Ilare
Mitelea, Ion
Utu, Ion Dragos
Craciunescu, Corneliu Marius
MATERIALS TODAY-PROCEEDINGS, 2021, 45 : 4157 - 4160
[37] Effects of transition from lamellar to compacted graphite on thermal conductivity of cast iron
Holmgren, D. M.
Dioszegi, A.
Svensson, I. L.
INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2006, 19 (06) : 303 - 313
[38] Effect of the cooling rate on the tensile strength of pearlitic lamellar graphite cast iron
Lima, F. F. O.
Bauri, L. F.
Pereira, H. B.
Azevedo, C. R. F.
INTERNATIONAL JOURNAL OF CAST METALS RESEARCH, 2020, 33 (4-5) : 201 - 217
[39] Laser Welding of Grey Cast Iron with Spheroidal Graphite-Influence of Process Parameters on Crack Formation and Hardness
Sommer, Niklas
Lehto, John Michael
Voelkers, Stephan
Boehm, Stefan
METALS, 2021, 11 (04)
[40] Influence of Ti on Graphite Morphological Transition in Flake Graphite Cast Iron
Nakaee, Hideo
Fujimoto, Kyohei
SCIENCE AND PROCESSING OF CAST IRON IX, 2011, 457 : 25 - +

← 1 2 3 4 5 →