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

标准状态：已作废

替代情况：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.

相关标准

国家标准GB/T 4340.1-2009《金属材料 维氏硬度试验 第1部分：试验方法》

       本标准修改采用国际标准ISO6507-1:2005《金属材料 维氏硬度试验 第1 部分:试验方法》(英文版)。 

       本标准根据ISO6507-1:2005重新起草,根据我国的实际情况,本标准在采用国际标准时进行了修改和补充。这些技术性差异用垂直单线标识在它们所涉及的条款的页边空白处。 

       本标准结构和技术内容与ISO6507-1:2005基本一致,根据我国情况在以下几方面进行了修改: 

       —— 删去了国际标准的前言; 

       —— 本国际标准一词改为本标准; 

       —— 用小数点.代替作为小数点的,; 

       —— 增加了对显微维氏硬度试验力的说明; 

       —— 增加了对特殊材料试验力保持时间误差的说明; 

       —— 对原ISO6507-1:2005标准的附录D 硬度值的测量不确定度进行了修改。