خدمة تلخيص النصوص العربية أونلاين،قم بتلخيص نصوصك بضغطة واحدة من خلال هذه الخدمة
Increasingly stringent emission standards are changing the conditions that valve systems in heavy duty engines are exposed to. Increased pressures and temperatures are challenging system endurance.It was found that there was some mechanical lapse in proper sitting of the valve, which had been responsible for unwarranted overheating especially at thinner sections.Microstructure examination revealed that overheating had been responsible for a creep-rupture failure accentuated by precipitation of undesirable constituents at grain boundariesA consequence of these changing conditions is a reduction in the levels of soot production that had formerly generated protective films.
Increasingly stringent emission standards are changing the conditions that valve systems in heavy duty engines are exposed to. Increased pressures and temperatures are challenging system endurance. A consequence of these changing conditions is a reduction in the levels of soot production that had formerly generated protective films. In order to help combat this, nickel-based super alloys have been widely used in applications requiring strength at high temperature. This study presents a premature failure case of a set of exhaust valves belonging to a heavy duty natural gas engine; where the valves were manufactured from one of these alloys, the precipitation hardened Inconel-751. The failure occurred at approximately 5000 operating hours after its first commissioning, whilst the standard expected service life of the valves is 20,000 h. Several examinations employing multiple techniques were carried out in order to identify the root cause of failure, whilst comparing results against those of a new valve. It was found that there was some mechanical lapse in proper sitting of the valve, which had been responsible for unwarranted overheating especially at thinner sections. Microstructure examination revealed that overheating had been responsible for a creep-rupture failure accentuated by precipitation of undesirable constituents at grain boundaries
تلخيص النصوص العربية والإنجليزية اليا باستخدام الخوارزميات الإحصائية وترتيب وأهمية الجمل في النص
يمكنك تحميل ناتج التلخيص بأكثر من صيغة متوفرة مثل PDF أو ملفات Word أو حتي نصوص عادية
يمكنك مشاركة رابط التلخيص بسهولة حيث يحتفظ الموقع بالتلخيص لإمكانية الإطلاع عليه في أي وقت ومن أي جهاز ماعدا الملخصات الخاصة
نعمل علي العديد من الإضافات والمميزات لتسهيل عملية التلخيص وتحسينها
Many industry sectors have been pursuing the adoption of Industry 4.0 (I4.0) ideas and technologies,...
Hope means that we should never give up when we want to reach our goals and our ambitions. My story ...
Adam Smith sat on the edge of the narrow beda looked through the bars of his cell. 1 no one believe ...
من خلال دراستنا واطلاعنا على موضوع العلاقات الإنسانية وتأثيره على الرضا الوظيفي لدى العاملين بالإقام...
حماية البيانات الشخصية للمستهلكين، أدخلت إرشادات حماية البيانات من سامسونج وتعمل سياسات محلية تعكس ا...
.WHY IS PORTFOLIO ASSESSMENT DISTINCTIVE? Portfolio assessment stands out as an instructional, diver...
. Incubate at 55-60 C for 10 minute. For long –term storage, store the purified RNA at -70C. Collect...
Incongruity and Surprise Incongruity or divergence in marketing messages, especially in relation to ...
In conclusion, utilizing cardboard for storing items not only proves to be a cost-effective solution...
جاءت وثيقة «الأخوة الإنسانية» لتؤكد مبادئ التعايش، حرية الاعتقاد، العدل، حفظ الحقوق...الخ- التي، سبق...
تعجدت تعخيفات الذخكة القابزة ما بيغ فقيية كتذخيعية ، ّ خ َ ُع ت الذخكة القابزة عمى أنيا: " الذخكة ا...
يعّرف الخبراء الثقافة عالية األداء على أنها مجموعة من المعتقدات والقيم المشتركة التي وضعها القادة. ث...