INTERNATIONAL STANDARD ISO 6507-1:2005(E)
Metallic materials — Vickers hardness test —
Part 1:
Test method
ISO 6507 consists of the following parts, under the general title Metallic materials —— Vickers hardness test:
ISO 6507-1 Metallic materials —— Vickers hardness test Part 1: Test method
ISO 6507-2 Metallic materials —— Vickers hardness test Part 2: Verification and calibration of testing machines and indenters
ISO 6507-3 Metallic materials —— Vickers hardness test Part 3: Calibration of refernce blocks
ISO 6507-4 Metallic materials —— Vickers hardness test Part 4: Table of hardness values
標(biāo)準(zhǔn)狀態(tài)：已作廢
替代情況：被 ISO 6507-1：2018替代
Contents
Foreword
Introduction
1 Scope
2 Normative references
3 Principle
4 Symbols and abbreviated terms
5 Testing machine
6 Test piece
7 Procedure
8 Uncertainty of the results
9 Test report
Annex A (normative) Minimum thickness of the test piece in relation to the test force and to the
hardness
Annex B (normative) Tables of correction factors for use in tests made on curved surfaces
Annex C (informative) Procedure for periodic checking of the testing machine by the user
Annex D (informative) Uncertainty of the measured hardness values
Bibliography
1 Scope
This part of ISO 6507 specifies the Vickers hardness test method, for the three different ranges of test force
for metallic materials (see Table 1).
The Vickers hardness test is specified in this part of ISO 6507 for lengths of indentation diagonals between
0,020 mm and 1,400 mm.
NOTE 1 For indentation diagonals less than 0,020 mm, the increase of the uncertainty has to be considered.
NOTE 2 In general, decreasing the test force increases the scatter of results of the measurements. This is particularly
true for low-force Vickers hardness tests and Vickers microhardness tests, where the principal limitation will arise in the
measurement of the diagonals of the indentation. For Vickers microhardness, the accuracy of determination of the mean
diagonal length is unlikely to be better than ± 0,001 mm (see Bibliography [2]-[5]).
For specific materials and/or products, particular International Standards exist.
2 Normative references
The following referenced documents are indispensable for the application of this document. For dated
references, only the edition cited applies. For undated references, the latest edition of the referenced
document (including any amendments) applies.
ISO 6507-2:2005, Metallic materials — Vickers hardness test — Part 2: Verification and calibration of testing
machines
ISO 6507-4, Metallic materials — Vickers hardness test — Part 4: Tables of hardness values
3 Principle
A diamond indenter, in the form of a right pyramid with a square base and with a specified angle between
opposite faces at the vertex, is forced into the surface of a test piece followed by measurement of the diagonal
length of the indentation left in the surface after removal of the test force, F (see Figure 1).
The Vickers hardness is proportional to the quotient obtained by dividing the test force by the sloping area of
the indentation, which is assumed to be a right pyramid with a square base, and having at the vertex the same
angle as the indenter.
相關(guān)標(biāo)準(zhǔn)
國(guó)家標(biāo)準(zhǔn)GB/T 4340.1-2009《金屬材料 維氏硬度試驗(yàn) 第1部分：試驗(yàn)方法》
本標(biāo)準(zhǔn)修改采用國(guó)際標(biāo)準(zhǔn)ISO6507-1:2005《金屬材料 維氏硬度試驗(yàn) 第1 部分:試驗(yàn)方法》(英文版)。
本標(biāo)準(zhǔn)根據(jù)ISO6507-1:2005重新起草,根據(jù)我國(guó)的實(shí)際情況,本標(biāo)準(zhǔn)在采用國(guó)際標(biāo)準(zhǔn)時(shí)進(jìn)行了修改和補(bǔ)充。這些技術(shù)性差異用垂直單線標(biāo)識(shí)在它們所涉及的條款的頁(yè)邊空白處。
本標(biāo)準(zhǔn)結(jié)構(gòu)和技術(shù)內(nèi)容與ISO6507-1:2005基本一致,根據(jù)我國(guó)情況在以下幾方面進(jìn)行了修改:
—— 刪去了國(guó)際標(biāo)準(zhǔn)的前言;
—— 本國(guó)際標(biāo)準(zhǔn)一詞改為本標(biāo)準(zhǔn);
—— 用小數(shù)點(diǎn).代替作為小數(shù)點(diǎn)的,;
—— 增加了對(duì)顯微維氏硬度試驗(yàn)力的說(shuō)明;
—— 增加了對(duì)特殊材料試驗(yàn)力保持時(shí)間誤差的說(shuō)明;
—— 對(duì)原ISO6507-1:2005標(biāo)準(zhǔn)的附錄D 硬度值的測(cè)量不確定度進(jìn)行了修改。
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