英语翻译the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/10 07:02:11
英语翻译the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties

英语翻译the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties
英语翻译
the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties fall only slowly and uniformly up to about 200 deg c,at which temperature the strength of LM25-TF is reduced by about 20%.very prolonged heating,e.g.10,000hours ,results in a sharp loss of strength at about 135 deg c .at 200 deg c the strength of LM25-TF is less than half of that at room temperature.there is therefore no advantage to be gained by heat treatment,if the component is to be used at temperatures above about 130 deg c,for extended periods of time
数蚂蚁 21:57:20
the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties fall only slowly and uniformly up to about 200 deg c,at which temperature the strength of LM25-TF is reduced by about 20%.very prolonged heating,e.g.10,000hours ,results in a sharp loss of strength at about 135 deg c .at 200 deg c the strength of LM25-TF is less than half of that at room temperature.there is therefore no advantage to be gained by heat treatment,if the component is to be used at temperatures above about 130 deg c,for extended periods of time .
好象是说铸造金属的条件啊,温度什么的.

英语翻译the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties
高温条件下LM-25合金的拉伸性能受同等条件下铸件及时间情况(热处理)的影响.短时测试如:在200度环境下30分钟内,其性能仅缓慢匀速下降,同一温度下,LM25-TF的强度减少到百分之二十.长时测试如:在135度环境下10000小时后,其强度会骤然降低.在200度环境下,LM25-TF的强度仅为室温的一半.因此,如果被锻造部分被长时间用于130度以上的环境中,热处理则没有任何有益之处.

拉伸性能的流明25合金在高温下受条件(热处理)的铸件和持续时间,在高温下。短期测试eg30分钟,温度,性能下降缓慢均匀上升至约200度ç ,在温度的实力LM25因子减少了20 %左右。很长时间加热, eg10000hours ,结果在一个急剧的强度损失约135度ç 。为200度c该强度的LM25因子是不到一半,在室温。因此,有没有优势取得了热处理,如果部分是被用来在温度...

全部展开

拉伸性能的流明25合金在高温下受条件(热处理)的铸件和持续时间,在高温下。短期测试eg30分钟,温度,性能下降缓慢均匀上升至约200度ç ,在温度的实力LM25因子减少了20 %左右。很长时间加热, eg10000hours ,结果在一个急剧的强度损失约135度ç 。为200度c该强度的LM25因子是不到一半,在室温。因此,有没有优势取得了热处理,如果部分是被用来在温度超过130度C的长时间的拉伸性能的流明25合金在高温下受条件(热处理)的铸件和持续时间,在高温下。短期测试eg30分钟,温度,性能下降缓慢均匀上升至约200度ç ,在温度的实力LM25因子减少了20 %左右。很长时间加热, eg10000hours ,结果在一个急剧的强度损失约135度ç 。为200度c该强度的LM25因子是不到一半,在室温。因此,有没有优势取得了热处理,如果部分是被用来在温度超过130度C的长时间。

收起

tensile 英语翻译 英语翻译The versatility of the shear punch test (SPT) was considered as an alternative for assessing the tensile properties of Al/Ni–SiC gradient composites fabricated by infiltration of liquid aluminum into coated ceramics.Tensile strength val 英语翻译The Ninth Circuit Court of Appeals has lifted its order putting on hold a state court ruling determining that Prop 8 is unconstitutional. prop是什么意思 ? 英语翻译the tensile properties of lm 25 alloy at elevated temperatures are influenced by the condition(heat treatment)of the castings and the duration at the elevated temperature.on short term testing e.g.30 minutes at temperature,the properties 英语翻译the average length of the dispersed clay particles,andhence the aspect ratio.Fig.81 represents thedependence of the tensile modulus E measured at120 8C for exfoliated N6 nanocomposites with variousclay content,obtained by the in situ inte 英语翻译In this study,acrylonitrile butadiene styrene (ABS) terpolymer was reinforced with HNO3 treated short carbon fibres (CFs).The effects of fibre weight fraction on the tensile properties of the composites were examined.Increasing the fibre 英语翻译The tensile properties were higher in welds made under the Ar/CO2 mixture and with three passes per layer,in correlation to chemical composition and hardness results.Impact properties were excellent in all the conditions studied .The best 英语翻译The processing flaws,when present,become the controlling factor that prematurely causes the failure during tensile tests before any significant plastic deformation occurs,sometimes even prior to the onset of yielding.这句话 英语翻译Compressive strength is the ability of a material to resist being crushed.Compression is the opposite of tension with respect to the direction of the applied load.Most metals have high tensile strength and high compressive strength.Howeve 英语翻译FAST & long range.The BA609 tiltrotor.Ready to revolutionize the rotorcraft industry.Uniquely ready to fly like a turbo-prop and land like a helicopter.Able to carry 6 VIPS,or 4 litters,or 9 airline comfort seating 英语翻译prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to induce in its conpression str 建筑工程专业英语翻译,速度!prestressed concrete mild-steel bars are used in ordinary reinforced concrete beams to overcome the tensile weakness of concrete.another way of overcoming the weakness is by prestressing the contrete so as to ind 英语翻译Because brittleness based on tensile and compressive strength and brittleness based on the specialization tests are simply dafined and easily obtained,they are often used in engineering analysis.In terms of the correlation analysis,Kahram 英语翻译Hucka and Das stated that the concept of brittliness was not yet made precise.But with higher brittleness,the facts are observed,which include low values of elongation,fracture failure,formationoffines,high ratio of compressive to tensile 英语翻译上下原文 如下Uganda contributes troops to an Afrian Union force that helps to prop up a week,Western-backed government in Somalia that is trying to stop the Shabab from taking over. 英语翻译the rapid growth of digital media and communicationnetworks has created an urgent need for self-containeddata identification schemes to create adequate intellectual prop-erty right (IPR) protection technology in particular for imageand vi 英语翻译Attributes like wear resistance,deformation behavior,tensile strength,aswell as modulus of elasticity or Young’smodulus are connected with the termhardness.这句中的young's modulus什么意思