SU1462160A1 - Method of measuring degree of wear hardening of surface layers of metals and alloys - Google Patents

Method of measuring degree of wear hardening of surface layers of metals and alloys Download PDF

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Publication number
SU1462160A1
SU1462160A1 SU874204590A SU4204590A SU1462160A1 SU 1462160 A1 SU1462160 A1 SU 1462160A1 SU 874204590 A SU874204590 A SU 874204590A SU 4204590 A SU4204590 A SU 4204590A SU 1462160 A1 SU1462160 A1 SU 1462160A1
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SU
USSR - Soviet Union
Prior art keywords
surface layers
degree
temperature
alloys
metals
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SU874204590A
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Russian (ru)
Inventor
Иван Ильич Коробков
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Московский Инженерно-Физический Институт
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Abstract

Изобретение относитс  к измерени м механических свойств материалов , а именно к измерени м твердости поверхностных слоев. Целью изобретени   вл етс  расширение номенклатуры исследуемых материалов за счет определени  степени наклепа,вызванной растворением в поверхностных сло х примесей внедрени . Нагревают образец, измер ют зависимость микротвердости его от температуры и по температуре в точке излома этой зависимости суд т о степени наклепа.1 ил. юThe invention relates to measuring the mechanical properties of materials, in particular to measuring the hardness of surface layers. The aim of the invention is to expand the range of materials studied by determining the degree of work hardening caused by dissolution of impurities in the surface layers. The sample is heated, the dependence of its microhardness on temperature is measured, and the degree of work cold is judged by the temperature at the break point of this dependence. 1 sludge. Yu

Description

1 one

Изобретение относитс  к измерени м механических свойств материалов , а именно к измерени м твердости поверхностных слоев.The invention relates to measuring the mechanical properties of materials, in particular to measuring the hardness of surface layers.

Целью изобретени   вл етс  расширение номенклатуры исследуемых материалов за счет определени  степени наклепа, вызванной растворением в поверхностных сло х примесей внедрени .The aim of the invention is to expand the range of materials studied by determining the degree of work hardening caused by dissolution of impurities in the surface layers.

На чертеже показаны зависимости, по которым определ етс  степень наклепа поверхностных слоев.The drawing shows the relationships by which the degree of peening of the surface layers is determined.

Способ осуществл ют следуюпщм образом .The method is carried out as follows.

Нагревают образец до температуры, не превышающей температуру возврата, устран ющую наклеп, в процессе нагрева измер ют микротвердость поверхностного сло , стро т зависимость микротвердости от температуры, нахо-The sample is heated to a temperature not exceeding the return temperature, which eliminates the work hardening, in the process of heating the microhardness of the surface layer is measured, the dependence of the microhardness on the temperature is taken,

д т температуру первой точки излома этой зависимости, котора   вл етс  температурой начала динамического деформационного старени  материала (точка Т крива  1) и, сравнива  это значение с температурой, аналогичной точке испытани  того же материала без наклепа (точка TO кривой 2) и того же материала с максимальным наклепом (точка TM крива  3), определ ют степень наклепа по формуле:d the temperature of the first break point of this relationship, which is the temperature of the onset of dynamic strain aging of the material (point T of curve 1) and comparing this value with a temperature similar to the test point of the same material without work hardening (point TO of curve 2) of the same material with maximum hardening (point TM of curve 3), determine the degree of work hardening by the formula:

гр грgr

п .100%p .100%

о   about

Claims (1)

Формула изобретени Invention Formula Способ определени  степени наклепа поверхностных слоев металлов и сплавов, заключающийс  в том, чтоThe method for determining the degree of work hardening of the surface layers of metals and alloys, which consists in 4four аbut N3N3 аbut 3. 14621603. 1462160 измер ют микротвердость и определ ют степень наклепа, о тли чающийс  тем, что, с целью расширени  номенклатуры исследуемых материалов , измен ют температуру ма- | териала, стро т зависимость микротвердости от температуры и в точке излома этой зависимости определ ют температуру, соответствующую началу динамического деформационного старени  материала, с учетом которой определ ют степень наклепа.Microhardness is measured and the degree of work hardening is determined, such as by the fact that, in order to expand the range of materials under study, the temperature of the material is changed. The material is used to plot the microhardness as a function of temperature, and at the break point of this dependence, the temperature corresponding to the onset of dynamic strain aging of the material is determined, taking into account the degree of work hardening. юоyo ZQGтZQGt Темпе1затура СTempezatura C
SU874204590A 1987-03-04 1987-03-04 Method of measuring degree of wear hardening of surface layers of metals and alloys SU1462160A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU874204590A SU1462160A1 (en) 1987-03-04 1987-03-04 Method of measuring degree of wear hardening of surface layers of metals and alloys

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU874204590A SU1462160A1 (en) 1987-03-04 1987-03-04 Method of measuring degree of wear hardening of surface layers of metals and alloys

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SU1462160A1 true SU1462160A1 (en) 1989-02-28

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2553829C1 (en) * 2014-04-01 2015-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева", НГТУ Method of metal mechanical testing

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Вишн ков Я.Д. Современные методы исследовани структуры деформированных кристаллов. М.: Металлурги , 1975, с. 25. Глазов В.М., Вигдорович В.Н. Микротвердость металлов и полупроводников. М.: Металлурги , 1969, с. 28-30. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2553829C1 (en) * 2014-04-01 2015-06-20 Федеральное государственное бюджетное образовательное учреждение высшего профессионального образования "Нижегородский государственный технический университет им. Р.Е. Алексеева", НГТУ Method of metal mechanical testing

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