JPS58107485A - Method for sputtering ultra-plastic zn-al alloy - Google Patents

Abstract

PURPOSE:To simplify heat treatment and surface treatment for enhancing strength and to reduce production cost, by carrying out the sputtering of an eutectoid alloy based on Zn and Al which is a fine crystal grain ultra-plastic alloy in such a state that said eutectoid alloy is heated to an eutectoid temp. or more. CONSTITUTION:A fine crystal grain ultra-plastic alloy, for example, a Zn-Al eutectoid alloy having a standard composition consisting of 22wt% Al and the remainder Zn is sputtered. At this time, while the Zn-Al alloy is held an eutectoid temp. or more, for example, at about 500 deg.C, for example, Ni is sputtered. By this method, tensile strength is enhanced about 60-70%.

Description

[Detailed Description of the Invention] This book is a detailed description of the detailed structure of grains, with 221 weight considerations, IA, 1, and 2 sub-compositions.
Hereinafter referred to as Zn-22M1) sputtering methodfiK
-What is the phenomenon of superplasticity and large deformation of certain metals at low stress at a certain Oa? , Take advantage of this feature to create the true four-mine!
1m shape, gas pressure forming, hot hobbing, and other machining techniques have been used.4 The material used is Zn-22, which has been researched for many years.
Since its onset temperature is relatively low at 200°C to 301 J$, it has come to practical use, and the material is now commercially available.

However, in order to form this Zn-22 membrane, it must be made of equicyclic thin-line grains of several micrometers or less, and its rounding mechanical stiffness is low, which is a drawback. Countermeasures include Mg, Ou, etc.
However, in the case of shito and shinin, the super-fineness of the frame simultaneously decreases, resulting in the defect I:L. It is known that mechanical strength increases when heat treatment is performed at a temperature higher than eutectoid alj (275°C) to grow crystal grains, or when microstructured fibers are formed. ! i!
lI [Improvement is mainly due to the heat treatment environment.0 Also, this In-22 M1 is a eutectoid composite fiber rounded wet type 6%. Remove as much as possible, and then send it to the Zingate treatment 114 for f) h, steel plating, nickel plating, etc. There are some methods that are commonly practiced, but they are not always satisfactory.

7 Therefore, as a narrow surface treatment for Zn-22μL, the most common method is resin coating.By the way, the inventor of the present invention has developed a thin metal film for sputtering on this Zn-22M cliff and gold. It has been discovered that if the plating is formed in a similar manner, subsequent wet plating is easy and a good-looking plating can be obtained.

And further ((In the present invention, by heating the substrate for more than i during sputtering of Zr*-224j1, the superplastic z!l-mu1 value sputtering'@ is heated to above the eutectoid temperature.
9. It is possible to simplify the heat treatment for the same strength and the general processing process fI4, and reduce the production cost.

The process will be explained in detail below.Example 1 Polished with a Zn-22mm emery abrasive paper, then washed with water on a puff polishing and buffing cloth, and washed with Tomonokai alcohol. 2 reef spatuta, overflowing mt
Sputtering was performed for 1 minute while maintaining the temperature at 5 uaC. The number of Mi layers at that time was approximately t5μ, so-called six.

The in-situ tensile strength is 1&4'q of sputtering.
f/d fi 29.81#f/-Klal upper sita.

Implementation - FI2 Commercially available QZn-22 M
After that, it was further puff-polished and made into a puff-polishing cloth and washed with water.
Clean with alcohol and heat to 9% fk on a 2-pole sputtering device.
) Iil sputtering was performed for 50 minutes while maintaining the temperature at 550°C. At that time, the MIIwI is about 1.5μ stiffness.In this case, the bow 1 tensile strength line is 19.5 o'clock f/-S f/- before sputtering. Wet plating on Kn-22A1 metal was very good.As stated above, according to the present invention, superplastic Zn-22Aμ
10 bases of sputtering of Suso 1#L shoulder heat 2 and Zn
-AJI Sokin tTo heat 21El above its eutectoid temperature, it)%! i! 1llj To simplify the heat treatment and narrow-sided salt processing equipment for the above, and reduce production costs).
There are things with the surname OJ.

Applicant: Dai-ichi Kenko Co., Ltd. Agent: Attorney-at-Law Mogami

Claims (1)

[Claims] Znsp and mu 1 made of aaa * a grain super-absorbent alloy
- Sputtering by heating the tj1 joint to eutectoid 1 or higher temperature - Featured sputtering method for S-layer Zn-me 1-layer ■