Instructions and help about hardness test report format. Four different materials were tested, including 6061t6 aluminum alloy, a36 hot. Page 1 definition defined as the resistance of metal to plastic deformation, usually by indentation. In general, hardness results can be converted from one scale to another, so long as the test is examining the same type of hardness.
Hardness test report sample fill online, printable, fillable, blank. Review of good technique for sampling water sample early in morning, fill sample bottle to rim to minimize air contact day 2. As a result of the indenters shape, the impression on. The harder the materials, the greater the resistance to penetration. The samples were cylindrical in cross section, with a reduced gage. Instructions and help about pipe hardness test report form. A variety of tests for hardness are in use, depending on which of the. Hardness it is defined as the resistance of a metal to plastic deformation against indentation, scratching, abrasion of cutting. Material science hardness test lab report hardness chemical.
The brinell hardness test method consists of indenting the test material with a tungsten carbide ball of either 1, 2. Hardness testing vickers hardness test the vickers hardness test method consists of indenting the test material with a diamond indenter, in the form of a pyramid with a square base and an angle of 6. For example, both the hardness test and the tensile test measure the resistance of a metal to plastic flow, and results of these tests may closely parallel each other. Microhardness testing, microhardness test laboratory.
Jun 01, 2018 a hardness test is a method employed to measure the hardness of a material. Understanding the jominy end quench test article pdf available in industrial heating 68. Tensile test machines with compression platen, 10mm diameter brinell indenter ball fixture and controller. Naga muruga and others published hardness test report find, read and cite all the research you need on researchgate. Hardness testing vickers hardness test the vickers hardness test method consists of indenting the test material with a diamond indenter, in the form of a pyramid with a square base and an angle of 6 degrees between opposite faces subjected to a test force of between 1gf and 100kgf. After that, the diameter of the indentation d mm is measured when the load is removed. Test report format fill out and sign printable pdf. The included angle between the opposite faces of the pyramid is l36. It is named after the swedish engineer who developed it in the 19th century. In this report i have tried my best to summarize all the things that i have learnt during my stay at rine engineering pvt limited,baddi,india, in simple and effective manner. For example, both the hardness test and the tensile test measure the.
The tensile testing laboratory was conducted using an instron load frame and the bluehill data acquisition software. For example your fingernail without nail polish has a hardness of 2. The angle between the faces of pyramid is 60 as shown in figure2. The hardness of materials are test by pressing a steel ball or tungsten carbide ball for a time of 10 to 15 seconds into the surface of specimen by a standard load f kgf. Mohs hardness scale lab millersburg area school district. Standard test methods for vickers hardness and knoop hardness. Brinell hardness test determination of hardness of steel and aluminum. The vickers hardness number vhn of materials is obtained by. Table 2 showed that the percent differences for rockwell test were smaller than for the brinell test. Principally, the importance of hardness testing has to do with. Tableofcontents listoffigures ix listoftables xii 1. Durometers with maximum reading indicators used to determine maximum hardness values of a material may yield lower hardness when the maximum indicator is used.
The experimental and referenced values for each metal were. The experimental and referenced values for each metal were compared. The indenter is forced into the test material under a preliminary minor load 0 fig. Brinell hardness test lab report hardness is the mechanical property of the material which helps him in resisting the plastic deformation of the material. Microhardness testing is a method of determining a materials hardness or resistance to penetration when test samples are very. Part 1 test method the importance of learning and understanding standards requirements cannot be overemphasized. Hardness is a critical property for many applications. Tensile testing and hardness testing of various metals. Brinell hardness test method indentec hardness testing.
Hardness is not a fundamental property of a material, but a response to a particular test method. One of the most popular hardness testing methods, brinell hardness number is obtained using a perfectly spherical. The full load is normally applied for 10 to 15 seconds in the case of iron and steel and for at least. Impact test conditions were chosen to represent those most severe relative to the potential.
Plastics deformation can be form the starching, compression or due to indentation of any object in the work piece. For softer materials the load can be reduced to 1500 kg or 500 kg to avoid excessive indentation. Hardness lab report hardness testing experiment 4 engr229. Diameters of the different balls used in brinell hardness test. Fundamentals of rockwell hardness testing like the brinell, vickers, knoop, scleroscope and leeb tests all of which fall in the general category of indentation hardness tests the rockwell test is a measure of the resistance of material, specifically metals, to permanent indentation. Since different materials behave in different ways, there are three. Jul 27, 2017 brinell hardness test is widely used for testing hardness of metals and nonmetals of low to medium hardness. To introduce the principles of indentation hardness testing, emphasizing the limitations and significance of the results. Hardness testing with zwickroell intelligent testing. Indentec hardness testing machines limited, west midlands, dy9 8hx. Vickers hardness test method indentec hardness testing.
Basically hardness values are arbitrary, and there are no absolute standards for hardness. Lab 3 tension test objectives concepts background experimental procedure report requirements discussion objectives experimentally determine the yield strength, tensile strength, and modules of. Zwickroell hardness testers, test blocks and indenters are supplied with. Tensile test machines with compression platen, 10mm diameter brinell indenter ball fixture and controller reticular eye piece microscope procedure brinell hardness test per astm e10 standard test method for brinell hardness of metallic materials. Microhardness testing is a method of determining a materials hardness or resistance to penetration when test samples are very small or thin, or when small regions in a composite sample or plating are to be measured. Test report format fill out and sign printable pdf template. Generally as hardness increases so does yield strength and ultimate tensile strength uts, thus specifications often require the results of hardness tests rather. Since the ability of the material to resist deformation is related to the yield point and the materials capacity for workhardening, the result is actually a meas. Test sample the end of test report the content of this pdf file is accordance with the original issued.
Indentation hardness is not a fundamental property of a. Standard test methods for vickers hardness and knoop. The ease with which the hardness test can be made has made it the most common method of inspection for metals and alloys. The materials and the aforesaid property have significant use in civil engineering. Standard test method for rubber propertydurometer hardness1. Sandland at vickers ltd as an alternative to the brinell method to measure the hardness of materials. The vickers hardness test was developed in 1921 by robert l. The hardness test experiment was done using a brinell and a rockwell testers. Vickers hardness test uses the loads ranging from 1 120 kgf, applied for between 10 and 15 seconds. Hardness laboratory engineering swarthmore college. In the test, a hardened steel or cemented carbide ball of 10mm diameter is pressed into the surface of a specimen using a load of 500, 1500, or 3000 kg. The vickers hardness tester operates on the same basic principle as the brinell tester, the numbers being expressed in the terms of load and area of the impression. This analysis will utilize the method of titration. Material science hardness test lab report free download as word doc.
To determine the rockwell hardness of a given test specimen ii. One of the most popular hardness testing methods, brinell hardness number is obtained using a perfectly spherical hardened steel ball of 10 mm pressed against the test surface using a static force of 3000 kg 29. In dynamic hardness tests, an object of standard mass and dimensions is bounced back from a surface. Principally, the importance of hardness testing has to do with the relationship between hardness and other properties of material. Macroindentation tests include vickers, rockwell and brinell. There are numerous techniques to measure hardness and each of these tests can identify varying hardness values for a single material under testing. Iso 65061 metallic materials brinell hardness test. According to the metals handbook, hardness is defined as the resistance to plastic deformation. Practical hardness testing made simple 10 an international standard, issued by iso international standards organisation, available on this subject is. Hardness refers to a materials resistance to permanent indentation. Fill out, securely sign, print or email your hardness test report format instantly with signnow. Conclusion the hardness test experiment was done using a. The purpose of this experiment is to determine the hardness of a water sample by measuring the amount of calcium present.
Rockwell scale, carbon steel, vickers hardness test pages. The full load is normally applied for 10 to 15 seconds. Abstract the objective of this experiment is to measure the hardness values of different specimens using four test methods. This is an inexpensive way to test your water hardness.
Later, in 1939, an alternative to the vickers test was introduced by fredrick knoop at the us national bureau of standards. In the lab, we use the two most common rockwell scales. You need to find a quality surface or edge on your unknown to. The brinell hardness test method consists of indenting the test material with a 10 mm diameter hardened steel or carbide ball subjected to a load of 3000 kg. The knoop test utilized a shallower, elongated format of the diamond pyramid. What was amazing was that they all had different hardness results even though they took their readings from the same source. The data used for this lab report was not gathered from the student run experiments, but rather from standardized testing performed by the laboratory professor, to ensure accurate and consistent results. However, the term may also refer to stiffness or temper or to resistance to scratching, abrasion, or cutting. Pdf brinell hardness test determination of hardness of steel and. The vickers hardness test uses a square base diamond pyramid as the indenter. The end of test report test sample the content of this pdf file is accordance with the original issued. These results suggest that the rockwell hardness test is a poor test to determine composition of specimens, although, in practice, hardness tests. Rockwell b test brinell 10500 hardness test average 99. Pdf brinell hardness test determination of hardness of.
Performing a hardness test requires good technique. Hardness is generally considered as resistance to penetration. Rockwell hardness test the rockwell hardness test is a hardness measurement based on the net increase in depth of impression as a load is applied. The most secure digital platform to get legally binding, electronically signed documents in. Hardness testing lab report the purpose of the following experiments is to study the hardness of different types of materials, and to understand the significance of this property in materials. Four different materials were tested, including 6061t6 aluminum alloy, a36 hot rolled steel, polymethylmethacrylate pmma, cast acrylic, and polycarbonate.
Vickers test the vickers hardness test is based on the same principle as the brinell test, except the indenter is a diamond pyramid with square base. Durometers with maximum reading indicators used to. Total test forces range from 15kgf to 150 kgf superficial and. Fortunately, there is a relatively easy method to measure the hardness of materials, called the vickers hardness test. Steps to check and record brinell hardness of specimen, 3. Rockwell hardness tester with 116 inch ball indenter tip and 100 kg of mass weights.
844 1071 563 1398 1367 1394 14 203 855 1136 1533 406 427 760 1558 1615 1330 289 1323 586 966 1305 1089 1149 584 572 946 1576 1442 1340 1436 69 973 560 492 1485 1358