Effect of Electroless Ni-P Plating on the Mechanical Properties of an Al-1.2%Si Alloy

Nagata, Norihito; Kanadani, Teruto; Hiraoka, Hayato; Fukuhara, Minoru; Murakami, Kouji; Hino, Makoto

doi:10.2320/jinstmet.jc201314

Cited by 7 publications

(1 citation statement)

References 11 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…7) However, in the electroless NiP plating of AlSi and Al CuMg aluminum alloys containing micron-sized precipitates, it has been observed that the hydrogen absorbed in the material during plating adversely affects the fatigue strength. 8,9) Because A7075 aluminum alloy exhibits high hydrogen embrittlement sensitivity, 10) there is a concern that the hydrogen absorbed in this material by electroless NiP plating may adversely affect its fatigue strength.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Property of Electroless Ni–P Plated A7075-T6511 Alloy Affected by Plated Film Composition

et al. 2022

Self Cite

View full text Add to dashboard Cite

In this study, with the aim of improving the fatigue characteristics of the A7075 aluminum alloy, A7075-T6511 alloy rod specimens were plated with electroless NiP with different compositions, and the fatigue characteristics were evaluated by a rotary bending fatigue test. The fatigue strength of the specimen plated with low-P type was higher than that of the un-plated specimen. However, the fatigue strength of the specimen plated with high-P type was significantly lower than that of the un-plated specimen, and the fatigue strength of the specimen plated with medium-P type was also lower though the extent was not so significant. It was speculated that these reductions in fatigue strength were due to hydrogen embrittlement by the hydrogen introduced into the specimen during the plating.

show abstract

Section: Introductionmentioning

confidence: 99%

Fatigue Property of Electroless Ni–P Plated A7075-T6511 Alloy Affected by Plated Film Composition

et al. 2022

Self Cite

View full text Add to dashboard Cite

show abstract

Effect of Surface Structure and Hydrogen on the Fatigue Strength of Electroless Nickel-Phosphorus Plated Al-1.2%Si Alloy

Nagata¹,

Kanadani²,

Nakagawa³

et al. 2015

J.Japan Inst.Metals

View full text Add to dashboard Cite

In this study, we examined the influence of surface precipitates and hydrogen gas on the fatigue strength of an electroless Ni P plated Al 1.2Si alloy.As the results, the following points were clarified.(1) Fatigue strength of the specimen subjected to zincate treatment only after a furnace cooling treatment was almost the same as only furnace cooling. (2) Fatigue strength of the specimen subjected to Ni P plating after a furnace cooling treatment was reduced overall, except for the high stress region, rather than one of the non processed materials. (3) Fatigue strength of the specimen subjected to Ni P plating after aging treatment showed a clear increase in comparison to one of the non processed materials. (4) In the specimens subjected to the Ni P plating after a furnace cooling treatment or aging treatment, clear hydrogen desorption was recognized. On the other hand, there was only hydrogen desorption from a few of the specimens subjected to zincate treatment after the furnace cooling treatment or only furnace cooling.It is considered that the poor fatigue strengths of the plating materials are mainly due to the interaction between the surface precipitates and hydrogen gas. [doi:10.2320/jinstmet.JC201412] (Received November 12, 2014; Accepted January 8, 2015; Published March 1, 2015) Keywords: aluminum silicon alloy, nickel phosphorus plating, fatigue strength, aging, surface precipitate, hydrogen gas

show abstract

Effect of Electroless Ni-P Plating on the Mechanical Properties of Al-4%Ge Alloy

Nagata

Kanadani

Nakagawa

et al. 2015

J. Japan Inst. Metals and Materials

View full text Add to dashboard Cite

In this study, the effect of electroless Ni P plating on the mechanical properties of Al 4Ge alloy was investigated. As the results, the following points were clarified. (1) Tensile strength of the specimen subjected to the Ni P plating after aging treatment or furnace cooling treatment was improved by about 10 in comparison to one of the non processed specimens. (2) Breaking elongation of the specimen subjected to the Ni P plating after aging treatment showed no significant changes in comparison to one of the non processed specimens. On the other hand, breaking elongation of the specimen subjected to Ni P plating after a furnace cooling treatment was reduced to 70 in comparison to one of the non processed specimens. (3) Fatigue strength of the specimen subjected to the Ni P plating after a furnace cooling treatment was overall reduced rather than one of non processed specimens. (4) Fatigue strength of the specimen subjected to the Ni P plating after aging treatment was overall reduced, except for the low stress region, rather than one of the non processed specimens. (5) In the specimen subjected to Ni P plating after a furnace cooling treatment or aging treatment, clear hydrogen desorption was recognized. On the other hand, there was only hydrogen desorption from a few of the non processed specimens.Especially, it is considered that the poor fatigue strength and ductility of the plating materials are mainly due to the interaction between the surface precipitates and hydrogen gas.

show abstract

Effect of Electroless Ni-P Plating on the Mechanical Properties of an Al-1.2%Si Alloy

Cited by 7 publications

References 11 publications

Fatigue Property of Electroless Ni–P Plated A7075-T6511 Alloy Affected by Plated Film Composition

Fatigue Property of Electroless Ni–P Plated A7075-T6511 Alloy Affected by Plated Film Composition

Effect of Surface Structure and Hydrogen on the Fatigue Strength of Electroless Nickel-Phosphorus Plated Al-1.2%Si Alloy

Effect of Electroless Ni-P Plating on the Mechanical Properties of Al-4%Ge Alloy

Contact Info

Product

Resources

About