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The heat treatment of steel after its formation is rather important.
The treatment of steel is now an elaborate science of its own, and it is, of course, closely connected with the contents of the steel. The heating and the quenching are designed to bring about the arrangement of the crystalline structure in the desired way, to give the required properties. For example, steels containing a high percentage of carbon may be quenched after being heated to a high temperature to make them hard, and then moderately tempered to restore toughness.
No steel is used today that has not been tested. The simplest examinations are those made with magnifying glass or a microscope.
Spectroscopic or chemical analysis, X-ray examination, and magnetic or electrical tests may be applied. Specimens are also subjected to physical tests for toughness, strength, and hardness.
The heat treatment of steel after its formation is rather important.
The treatment of steel is now an elaborate science of its own, and it is, of course, closely connected with the contents of the steel. The heating and the quenching are designed to bring about the arrangement of the crystalline structure in the desired way, to give the required properties. For example, steels containing a high percentage of carbon may be quenched after being heated to a high temperature to make them hard, and then moderately tempered to restore toughness.
No steel is used today that has not been tested. The simplest examinations are those made with magnifying glass or a microscope.
Spectroscopic or chemical analysis, X-ray examination, and magnetic or electrical tests may be applied. Specimens are also subjected to physical tests for toughness, strength, and hardness.
Answers & Comments
Обработка стали теперь представляет собой сложную науку, и она, конечно, сильно зависит от состава стали. Нагреви охлаждение предназначены для обеспечения требуемого формированиякристаллической структуры и обеспечения необходимых свойств. Например,стали, содержащие высокий процент углерода, можно закалять нагреванием до высокой температуры, чтобы сделать их твердыми, а затем постепенно отпускать их для восстановления вязкости.
Сегодня ни один из видов стали не используется без предварительного анализа. Простейшие исследования выполняются при помощи увеличительного стекла или микроскопа.
Могут применяться спектроскопический или химический анализ, рентгеновское обследование, а также магнитные или электрические испытания. Образцы также подвергаются физическим испытаниям на прочность, сопротивляемость и твердость.