Development of the compound layer during nitriding and nitrocarburising of iron and iron-carbon alloys

2015 ◽  
pp. 341-372 ◽  
Author(s):  
M.A.J. Somers
Keyword(s):  
Compound Layer

Dissimilar Metal Welding of Steel to Al-Mg Alloy by Spot Resistance Welding

2006 ◽  
Vol 15-17 ◽  
pp. 381-386 ◽  
Author(s):  
I.H. Hwang ◽  
Takehiko Watanabe ◽  
Y. Doi
Keyword(s):  
Intermetallic Compound ◽  
Base Metal ◽  
Joint Strength ◽  
Pure Aluminum ◽  
Compound Layer ◽  
Interfacial Microstructure ◽  
Mg Alloy ◽  
Intermetallic Compound Layer ◽  
Commercially Pure ◽  
Insert Metal

We tried to join steel to Al-Mg alloy using a resistance spot welding method. The effect of Mg in Al-Mg alloy on the strength and the interfacial microstructure of the joint was investigated. Additionally, the effect of insert metal of commercially pure aluminum, which was put into the bonding interface, on the joint strength was examined. The obtained results were as follows. The cross-tensile strength of a joint between SS400 steel and commercially pure aluminum (SS400/Al) was high and fracture occurred in the aluminum base metal. However, the strength of a joint between SS400 and Al-Mg alloy was remarkably low and less than 30% of that of the SS400/Al joint. An intermetallic compound layer developed so thickly at the bonded interface of the SS400/Al-Mg alloy joint that the joint strength decreased. The intermetallic compound layer developed more thickly as Mg content in the Al-Mg alloy increased. Using insert metal of commercially pure aluminum containing little Mg successfully improved the strength of the SS400/Al-Mg alloy joint and the strength was equivalent to that of the base metal.

scholarly journals Modeling of compound layer growth during nitriding of pure iron

2016 ◽  
Vol 11 (13) ◽  
pp. 135-146 ◽  
Author(s):  
Manuel Hernandez Ernesto ◽  
Antonio Otero Jose ◽  
Jimenez Antonio ◽  
Dario Santiago Ruben ◽  
Martinez Raul ◽  
...  
Keyword(s):  
Pure Iron ◽  
Compound Layer ◽  
Layer Growth

scholarly journals THE INFLUENCE OF SALT BATH NITRIDING VARIABLES ON HARDNESS LAYER OF AISI 1045 STEEL

2016 ◽  
Vol 22 (3) ◽  
pp. 188
Author(s):  
Elhadj Ghelloudj ◽  
Hamid Djebaili ◽  
Mohamed Tahar Hannachi ◽  
Abdenour Saoudi ◽  
Bilal Daheche
Keyword(s):  
Compound Layer ◽  
Salt Bath ◽  
Case Depth ◽  
Nitriding Process ◽  
Hardness Profile ◽  
Aisi 1045 Steel ◽  
Aisi 1045 ◽  
Layer Increase ◽  
1045 Steel ◽  
Salt Bath Nitriding

<span>The aim of  this paper is to study and analyze the effects of a surface controlled salt bath nitriding on the microhardness of AISI 1045 steel. The nitriding process were implemented in salt bath component at ten different times (from 1 h to 10 h) when temperature was constant at (520ºC). The nitriding process repeated of another specimens at the same times but the temperature was (580ºC).The microstructure of surface layers was investigated by optical microscopy. Hardness profiles were measured with low-load hardness testing to determine the growth of the case depth after nitriding. Microhardness testing was carried out on samples to investigate the hardness profile at the transition from the compound to the diffusion layer. The microhardness of surface of nitrided sample at 520ºC and 580ºC was observed in the range of 318–430 HV0.3 and 329–421 HV0.3, respectively. Experimental results showed that the nitrides ε-Fe2-3(N,C) and γ’-Fe4(N,C) present in the compound layer increase the microhardness. It is found that salt bath nitriding parameters (time and temperature) improves the microhardness. </span>

scholarly journals The Kinetic Aspects of Diffusion Zone and Compound Layer Formed by Ion-softnitriding

1978 ◽  
Vol 42 (11) ◽  
pp. 1066-1070
Author(s):  
Mizuo Edamura ◽  
Minoru Makimura ◽  
Takashi Kajikawa ◽  
K\={o}ichi Imai ◽  
Satoshi Furuitsu ◽  
...  
Keyword(s):  
Diffusion Zone ◽  
Compound Layer

Formation of intermetallic compound layer in multi-laminated Ni–(TiB2/Al) composite sheets during annealing treatment

Micron ◽  
2013 ◽  
Vol 45 ◽  
pp. 150-154 ◽  
Author(s):  
Q.W. Wang ◽  
G.H. Fan ◽  
L. Geng ◽  
J. Zhang ◽  
Y.Z. Zhang ◽  
...  
Keyword(s):  
Intermetallic Compound ◽  
Annealing Treatment ◽  
Compound Layer ◽  
Intermetallic Compound Layer ◽  
Al Composite
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