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Heat treatment method of transformation zinc-aluminum-vanadium alloy

A technology of zinc-aluminum-vanadium alloy and heat treatment method, which is applied in the field of non-ferrous metal material processing, can solve the problem of low comprehensive performance of deformed zinc-aluminum alloy, and achieve the effect of good toughness and improved elongation

Active Publication Date: 2019-04-16
CENT SOUTH UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the low comprehensive performance of deformed zinc-aluminum alloys in the prior art, the purpose of the present invention is to provide a heat treatment method for deformed zinc-aluminum-vanadium alloys with excellent tensile strength, yield strength and elongation after fracture

Method used

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  • Heat treatment method of transformation zinc-aluminum-vanadium alloy
  • Heat treatment method of transformation zinc-aluminum-vanadium alloy
  • Heat treatment method of transformation zinc-aluminum-vanadium alloy

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] 1. Heat treatment process of deformed zinc vanadium aluminum alloy

[0044] The alloy after homogenization treatment and hot and cold plastic deformation treatment is quenched and heat-treated by 4 times of ice water quenching cycle:

[0045] (100~120℃)×30min×quick cooling and quenching (≥35℃ / S)+(100~120℃)×30min×quick cooling and quenching (≥35℃ / S)+(100~120℃)×30min×quick cooling and quenching ( ≥35℃ / S)+(100~120℃)×30min×rapid cooling and quenching (≥35℃ / S)

[0046] 2. Tensile test at room temperature

[0047] The mechanical properties of the finally obtained zinc-vanadium-aluminum alloy were tested. The result is:

[0048]

Embodiment 2

[0050] 1. Heat treatment process of deformed zinc vanadium aluminum alloy

[0051] The alloy after homogenization treatment and hot and cold plastic deformation treatment is quenched and heat-treated by 4 times of ice water quenching cycle:

[0052] (120~140℃)×60min×quick cooling and quenching (≥55℃ / S)+(120~140℃)×60min×quick cooling and quenching (≥55℃ / S)+(120~140℃)×60min×quick cooling and quenching ( ≥55℃ / S)+(120~140℃)×60min×rapid cooling and quenching (≥55℃ / S)

[0053] 2. Tensile test at room temperature

[0054] The mechanical properties of the finally obtained zinc-vanadium-aluminum alloy were tested. The result is:

[0055]

Embodiment 3

[0057] 1. Heat treatment process of deformed zinc vanadium aluminum alloy

[0058] The alloy after homogenization treatment and hot and cold plastic deformation treatment is quenched and heat-treated by 4 times of ice water quenching cycle:

[0059] (140~160℃)×90min×quick cooling and quenching (≥75℃ / S)+(140~160℃)×90min×quick cooling and quenching (≥75℃ / S)+(140~160℃)×90min×quick cooling and quenching ( ≥75℃ / S)+(140~160℃)×90min×rapid cooling and quenching (≥75℃ / S)

[0060] 2. Tensile test at room temperature

[0061] The mechanical properties of the finally obtained zinc-vanadium-aluminum alloy were tested. The result is:

[0062]

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Abstract

The invention belongs to the technical field of nonferrous metal material processing and particularly relates to a heat treatment method of transformation zinc-aluminum-vanadium alloy. According to the heat treatment method of the transformation zinc-aluminum-vanadium alloy, multi-pass repeated heat treatment containing splat cooling circular quenching is adopted, and in other words, when heat preservation is conducted on a zinc-aluminum-vanadium alloy semi-finished product obtained after hot and cold plastic working for 0.5-2.0 hours at the temperature of 100-190 DEG C, the zinc-aluminum-vanadium alloy semi-finished product is delivered out of a furnace for splat cooling quenching; then, the zinc-aluminum-vanadium alloy semi-finished product is reheated to 100-190 DEG C, heat preservationis conducted for 0.5-2.0 hours, and the zinc-aluminum-vanadium alloy semi-finished product is delivered out of the furnace for splat cooling quenching; and heat treatment is repeated by two or more cycles as above. The tensile strength, achieved at the room temperature, of the zinc-aluminum-vanadium alloy obtained after the special heat treatment mode exceeds 402 MPa; and the percentage elongation after fracture reaches 10% or above. Compared with a common heat treatment method, by means of the heat treatment method, the tensile strength of the zinc-aluminum-vanadium alloy is improved by 60%or above, and good plasticity is maintained. Therefore, the heat treatment method can achieve the quite good engineering value.

Description

technical field [0001] The invention belongs to the technical field of non-ferrous metal material processing, and in particular relates to a heat treatment method for a deformed zinc-aluminum-vanadium alloy. Background technique [0002] my country is rich in zinc resources, and zinc and zinc alloys have the advantages of low melting point, low processing energy consumption, and good comprehensive performance. At present, zinc alloy has been widely used in hardware, bathroom, machinery, building materials, decoration, instrumentation, commemorative coins, etc. At the same time, zinc alloy has potential application prospects in many aspects. [0003] With the in-depth research and application of zinc alloys, two types of cast zinc alloys and deformed zinc alloys have been formed, and the widely used deformed zinc alloy structural materials are mainly Zn-Al series and Zn-Cu series. Among them, the Zn-10Al alloy containing 10% aluminum is the most widely used, and has been reg...

Claims

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Application Information

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IPC IPC(8): C22F1/16C22C18/04
CPCC22C18/04C22F1/002C22F1/165
Inventor 林高用刘昕怡谭鑫钟叶清
Owner CENT SOUTH UNIV
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