SU493696A1 - The method of determining the depth of the hardened surface peeled layer - Google Patents

The method of determining the depth of the hardened surface peeled layer

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Publication number
SU493696A1
SU493696A1 SU1720189A SU1720189A SU493696A1 SU 493696 A1 SU493696 A1 SU 493696A1 SU 1720189 A SU1720189 A SU 1720189A SU 1720189 A SU1720189 A SU 1720189A SU 493696 A1 SU493696 A1 SU 493696A1
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SU
USSR - Soviet Union
Prior art keywords
depth
determining
hardened surface
peeled layer
layer
Prior art date
Application number
SU1720189A
Other languages
Russian (ru)
Inventor
Борис Иванович Усачев
Сергей Владимирович Журавлев
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
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Priority to SU1720189A priority Critical patent/SU493696A1/en
Application granted granted Critical
Publication of SU493696A1 publication Critical patent/SU493696A1/en

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Изобретение относитс  к области техники контрол  качества технологии упрочнени  металлических деталей поверхностным наклепом .The invention relates to the field of quality control technology for strengthening metal parts by surface hardening.

Известны способы определени  глубины упрочненного поверхностного наклепанного сло , в которых из исследуемой детали вырезают плоский образец так, чтобы плоскость реза пересекла упрочненный слой, например в перпендикул рном ему направлении. Поверхность реза шлифуют и полируют. Упрочненный слой вы вл ют способами химического , электролитического или термического травлени  рекристаллизации, а также способами замера микротвердости или макротвердости вдавливанием, царапанием или абразивного износа.Methods are known for determining the depth of a hardened surface layer, in which a flat sample is cut out from a part to be examined so that the cut plane crosses the strengthened layer, for example, in a direction perpendicular to it. The cut surface is ground and polished. The hardened layer is detected by chemical, electrolytic, or thermal etching of recrystallization, as well as by methods of measuring microhardness or macrohardness by indentation, scratching, or abrasive wear.

Однако дл  некоторых материалов, например дл  высокопрочных конструкционных сплавов на основе титана и сталей, указанные способы оказываютс  малоэффективными .However, for some materials, for example for high-strength structural alloys based on titanium and steels, these methods are ineffective.

Целью изобретени   вл етс  расширение номенклатуры исследуемых материалов.The aim of the invention is to expand the range of materials under investigation.

Это достигаетс  тем, что образец подвергают пластическому деформированию в направлении , параллельном упрочненному слою, и за искомую величину принимают рассто ние от наклепанной поверхности до точки начала отклонени  профил  реза от плоскости. This is achieved by subjecting the sample to plastic deformation in a direction parallel to the hardened layer, and the distance from the cold-working surface to the point at which the cut profile starts to deviate from the plane is taken as the desired value.

Приготовленный по предложенному способу образец с полированной механическим или электролитическим методами поверхностью подвергают деформированию, например раст жению или изгибу на обечайке, до небольших 1-7% остаточных деформаций в направлеиии, нараллельиом упрочненному слою.A sample prepared by the proposed method with a surface polished by mechanical or electrolytic methods is subjected to deformation, for example, stretching or bending on the sidewall, to small 1-7% residual deformations in the direction of the reinforced layer.

плоскости реза при этом не остаетс  пр молинейным, а искривл етс  в той части образца, где был нанесен упрочненный слой. Фиксирование глубины упрочненного сло  провод т путем замера глубины искривленной полированной поверхности плоскости реза образца от напр женной поверхности до точки начала отклонени  профил  реза от плоскости. Замер глубины искривленной поверхности может быть осуществлен визуально , с помош,ью микроскопа и т. д. at the same time, the cutting plane does not remain linear, but is curved in the part of the specimen where the reinforced layer was applied. The fixation of the depth of the hardened layer is carried out by measuring the depth of the curved polished surface of the cut plane of the sample from the stressed surface to the point where the cut profile starts to deviate from the plane. Measuring the depth of the curved surface can be carried out visually, using a microscope, etc.

Предмет изобретени Subject invention

Способ опеределени  толщины упрочненного наклепом поверхностного сло  металлических деталей, заключающийс  в том, что из исследуемой детали вырезают плоский образец , шлифуют и полируют плоскость реза, секущую упрочненный слой, отличающийс  тем, что, с целью расширени  номенклатуры исследуемых материалов, образец подвергают пластическому деформированию в направлении, параллельном упрочненному 3 слою, и за искомую величину принимают рассто ние от наклепанной поверхности до точ4 ки начала отклонени  ирофил  реза от плоскости .The method of determining the thickness of the hardened surface layer of metal parts, consisting in that a flat sample is cut out of the test piece, polished and polished the cutting plane that cuts the reinforced layer, characterized in , parallel to the hardened layer 3, and take the distance from the glued surface to the point of the beginning of the deflection of the irophilus from the plane.

SU1720189A 1971-12-01 1971-12-01 The method of determining the depth of the hardened surface peeled layer SU493696A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU1720189A SU493696A1 (en) 1971-12-01 1971-12-01 The method of determining the depth of the hardened surface peeled layer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU1720189A SU493696A1 (en) 1971-12-01 1971-12-01 The method of determining the depth of the hardened surface peeled layer

Publications (1)

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SU493696A1 true SU493696A1 (en) 1975-11-28

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SU1720189A SU493696A1 (en) 1971-12-01 1971-12-01 The method of determining the depth of the hardened surface peeled layer

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525582A (en) * 2016-11-10 2017-03-22 西南大学 Method for judging plasticity of 5052 aluminum alloy cold-rolled sheet containing trace elements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106525582A (en) * 2016-11-10 2017-03-22 西南大学 Method for judging plasticity of 5052 aluminum alloy cold-rolled sheet containing trace elements
CN106525582B (en) * 2016-11-10 2019-06-14 西南大学 A method of judging the 5052 aluminium alloy flat cold-rolled sheet plasticity containing microelement

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