{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":1,"startPagecode":1},"records":[{"abstractinfo":"利用超声疲劳试验方法研究了不同回火温度对汽车轴用42CrMo调质钢疲劳性能的影响以及其裂纹萌生机理.结果表明,42CrMo调质钢的疲劳S-N曲线在106～109 cyc范围内存在平台,490℃回火后109 cyc的疲劳极限为600 MPa,520℃回火后109 cyc的疲劳极限为550 MPa.SEM断口观察表明42CrMo钢在高应力水平下疲劳裂纹倾向于在表面萌生,应力在疲劳极限附近疲劳裂纹倾向于在内部A12O3夹杂处萌生,疲劳后材料中的碳化物明显增加.TEM结果显示经过疲劳后屈氏体中板条的尺寸从原始的237 nm降低为138 nm.同时定量分析了夹杂尺寸与疲劳极限和疲劳寿命的关系.","authors":[{"authorName":"<span style=\"color:red\">窦</span><span style=\"color:red\">强将</span>","id":"4da46df0-fdd1-4360-bc1e-1d524b6d8895","originalAuthorName":"窦强将"},{"authorName":"赵子华","id":"347debee-9416-4436-8ca5-8573bd08ac61","originalAuthorName":"赵子华"},{"authorName":"聂宝华","id":"1046df1a-e4bc-407f-9c42-a9934ea24181","originalAuthorName":"聂宝华"},{"authorName":"马婧","id":"b8a8b9a9-c418-4cd8-a2b1-1193c6931652","originalAuthorName":"马婧"},{"authorName":"刘柯军","id":"9c7f7c38-4dae-41db-b9e4-32046a3b1b83","originalAuthorName":"刘柯军"},{"authorName":"张峥","id":"46061102-7ba1-4c2c-b010-f912fe478a07","originalAuthorName":"张峥"}],"doi":"","fpage":"175","id":"456d1086-b839-420d-93af-8d34c02a9628","issue":"z1","journal":{"abbrevTitle":"CLRCLXB","coverImgSrc":"journal/img/cover/CLRCLXB.jpg","id":"15","issnPpub":"1009-6264","publisherId":"CLRCLXB","title":"材料热处理学报"},"keywords":[{"id":"a4bf4ef1-60c2-412c-b6cf-c7da5630eaa4","keyword":"42CrMo钢","originalKeyword":"42CrMo钢"},{"id":"cff52596-f40d-4769-a21d-915654e47c02","keyword":"回火温度","originalKeyword":"回火温度"},{"id":"5fd366f9-51f4-4965-b566-a8c9a0e211e9","keyword":"超高周疲劳","originalKeyword":"超高周疲劳"},{"id":"f26febd9-b3ae-432d-ac99-eed1680df5ed","keyword":"Al2O3夹杂","originalKeyword":"Al2O3夹杂"}],"language":"zh","publisherId":"jsrclxb2014z1032","title":"回火温度对42CrMo钢超高周疲劳行为的影响","volume":"35","year":"2014"},{"abstractinfo":"探讨Sm(NO3)3亚慢性暴露对小鼠肝功能、肝脏组织结构、酶活的影响.ICR小鼠80只,雌雄各半,随机分成5组,分别自由饮用0,5,50,500,2000 mg·L-的Sm(NO3)3溶液90 d,测定小鼠肝功能指标及肝脏组织SOD,GSH-Px,CAT活力及MDA含量,肝脏光镜切片观察肝组织形态学的变化.结果显示60,90 d 2000 mg·L-1雌性组体重、雄性组肝脏脏器系数与对照组相比具有显著下降(P ＜0.05);2000 mg·L-1AST雌雄性组、ALT雄性组、Urea雌性组与对照相比具有显著升高(P＜0.05),ALB雄性组与对照相比显著降低(P＜0.05);GSH-PX活力5,50 mg·L-雄性组与对照组相比有极显著升高(P＜0.01),而500,2000 mg·L 1组雄性鼠有极显著和显著下降(P＜0.01,P＜0.05),SOD活力在500,2000 mg·L-1雌雄组与对照组相比有显著和极显著降低(P＜0.05,P＜0.01),MDA在50,500,2000 mg·L-1雌性组与对照相比有显著与极显著升高(P＜0.05,P＜0.01),CAT 500,2000 mg·L-1雄性组与对照组相比有显著降低(P＜0.05);500 mg·L 1组肝细胞肿大,胞质疏松,肝<span style=\"color:red\">窦</span>、中央静脉有狭窄,2000 mg·L-1细胞排列紊乱,细胞界限不清,部分肝<span style=\"color:red\">窦</span>狭小甚至完全闭塞,少数肝细胞有破裂现象.以上结果表明亚慢性Sm(NO3)3暴露可导致小鼠肝功能异常、肝组织结构损伤,并与暴露浓度、时间及性别相关;提示氧化损伤可能是亚慢性Sm(NO3)3暴露致小鼠肝脏毒性损伤的作用机制之一.","authors":[{"authorName":"阮琴","id":"651d07d3-d452-4050-87c7-731ea9073f94","originalAuthorName":"阮琴"},{"authorName":"申秀英","id":"a213434d-ceee-4382-96da-d1f49651f150","originalAuthorName":"申秀英"},{"authorName":"饶和平","id":"b45782d1-8554-4651-ad50-fb2068577407","originalAuthorName":"饶和平"},{"authorName":"王芳","id":"e7bea025-6642-45a0-adac-f7d682ebc70b","originalAuthorName":"王芳"},{"authorName":"郑绍成","id":"25d7f121-119f-48dd-88b5-c939e491448e","originalAuthorName":"郑绍成"},{"authorName":"徐晓虹","id":"3539b1ef-ea88-4018-84f8-157207fa4676","originalAuthorName":"徐晓虹"},{"authorName":"俞世钢","id":"d932bda2-76c8-45fb-bffb-950912db88c6","originalAuthorName":"俞世钢"},{"authorName":"姜科声","id":"f0f991e6-de9e-44da-bf14-0e14b903be45","originalAuthorName":"姜科声"}],"doi":"10.11785/S1000-4343.20170311","fpage":"383","id":"6d2bd9e6-00bb-4c13-9a35-511db6c81ac6","issue":"3","journal":{"abbrevTitle":"ZGXTXB","coverImgSrc":"journal/img/cover/ZGXTXB.jpg","id":"86","issnPpub":"1000-4343","publisherId":"ZGXTXB","title":"中国稀土学报"},"keywords":[{"id":"5946b124-5a6f-4ead-91c6-7d87272637bb","keyword":"Sm(NO3)3","originalKeyword":"Sm(NO3)3"},{"id":"b26526df-05ff-433a-a334-efa3c7fad019","keyword":"亚慢性暴露","originalKeyword":"亚慢性暴露"},{"id":"0f95dbb3-b5e1-43df-b366-6726aa6b9550","keyword":"肝功能","originalKeyword":"肝功能"},{"id":"1565192d-ae73-4131-92f1-83d008e3b9b6","keyword":"SOD","originalKeyword":"SOD"},{"id":"315f1581-5351-4576-9954-b0352065f6e0","keyword":"GSH-Px","originalKeyword":"GSH-Px"},{"id":"3caba57a-f368-4b1d-9edc-bfbed14c974c","keyword":"CAT","originalKeyword":"CAT"},{"id":"19fce69b-d895-41ad-9081-8a165d7cfff4","keyword":"MDA","originalKeyword":"MDA"},{"id":"ff0a62f1-e015-4481-b88e-7cb386bbe687","keyword":"肝组织结构","originalKeyword":"肝组织结构"}],"language":"zh","publisherId":"zgxtxb201703011","title":"亚慢性Sm(NO3)3暴露对小鼠肝脏的影响","volume":"35","year":"2017"},{"abstractinfo":"采用高压和常规压制方式制备了烧结(PrNd)33Al0.7Nb0.6Cu0.1B1.05Febal(质量分数)永磁体,利用扫描电镜、金相显微镜和振动样品磁强计及维氏硬度计对比研究了两种压制方式对样品微观组织和性能的影响.结果发现:与常规压制方式制备样品相比,1.8 GPa压强成型制备样品的Hcj和(BH)max分别提高了133 kA.m-1和0.6kJ.m-3；而3.6 GPa压强成型制备样品的Hcj和(BH)max分别提高了120.3 kA.m-1和3.2kJ.m-3.高压样品的主相晶粒较细小,富稀土相分布均匀合理,但过高的压<span style=\"color:red\">强将</span>使其维氏硬度降低.","authors":[{"authorName":"唐杰","id":"aa205529-14d1-4530-8530-37d4204db092","originalAuthorName":"唐杰"},{"authorName":"张林","id":"8ace227a-d9ac-426e-b84b-34363cebd5af","originalAuthorName":"张林"},{"authorName":"魏成富","id":"6edf7fe6-8511-4d1d-812c-df5413e9a83f","originalAuthorName":"魏成富"},{"authorName":"杨梨容","id":"ee2a4ac9-1eb9-427a-b87d-4d0cbca47152","originalAuthorName":"杨梨容"},{"authorName":"赵导文","id":"d0318585-9ce0-4cfa-810e-a62069c2d94a","originalAuthorName":"赵导文"}],"doi":"","fpage":"1060","id":"d2c47a63-c9c9-49f7-af68-d48868df69c9","issue":"6","journal":{"abbrevTitle":"XYJSCLYGC","coverImgSrc":"journal/img/cover/XYJSCLYGC.jpg","id":"69","issnPpub":"1002-185X","publisherId":"XYJSCLYGC","title":"稀有金属材料与工程"},"keywords":[{"id":"471450dd-87ae-4a4e-960d-0a42efbaed4a","keyword":"烧结NdFeB磁体","originalKeyword":"烧结NdFeB磁体"},{"id":"8787b790-be52-4bf0-acfb-3f785a2c3f78","keyword":"高压技术","originalKeyword":"高压技术"},{"id":"473a8913-8841-410c-9914-2db2186f9d64","keyword":"微观结构","originalKeyword":"微观结构"},{"id":"76648c6c-dc78-4a68-9d82-610077e20722","keyword":"性能","originalKeyword":"性能"},{"id":"63f67a40-cc1f-4eac-89f4-123ead2613f6","keyword":"晶粒","originalKeyword":"晶粒"}],"language":"zh","publisherId":"xyjsclygc201206024","title":"高压技术对烧结NdFeB性能和微观结构的影响","volume":"41","year":"2012"},{"abstractinfo":"对含砷铁精矿球团在中性、氧化和还原性气氛以及预氧化-还原焙烧过程中砷的挥发行为进行研究;并结合热力学分析,揭示不同气氛下砷挥发的机理.结果表明:含砷铁精矿球团在中性、弱还原性气氛或经预氧化-弱还原焙烧,均能实现砷的有效挥发.将含砷铁精矿球团在850℃、100％ N2气氛下焙烧10min,砷挥发率达到79.33％,砷含量由0.11％降低至0.023％;在950℃、5％H2、9.5％CO、85.5％CO2(体积分数)的弱还原气氛下焙烧10 min,砷挥发率为82.47％,残余砷含量仅为0.020％;球团在空气气氛下经750℃预氧化10 min后,再经950℃、5％H2、9.5％CO、85.5％CO2条件下还原20 min后,砷的挥发率达到81.76％,残余砷含量为0.021％.砷挥发机理的研究表明,砷在不同气氛下能够以As2(g)、As4(g)或As2O3(g)的形式挥发;但是氧化或还原气氛过<span style=\"color:red\">强将</span>分别生成砷酸铁和砷化铁影响砷的脱除.","authors":[{"authorName":"游志雄","id":"171ecf8d-e34b-4fb7-a79e-1f7131ae28ed","originalAuthorName":"游志雄"},{"authorName":"文佩丹","id":"ffcba186-e4e1-422c-a1ec-c4d3fe1489c0","originalAuthorName":"文佩丹"},{"authorName":"李光辉","id":"54f343b5-4bf4-4b60-aae6-62528e4aeec8","originalAuthorName":"李光辉"},{"authorName":"张元波","id":"7a2741d0-ab40-4ce6-b18b-d163ee4b1d7e","originalAuthorName":"张元波"},{"authorName":"姜涛","id":"d2a210d5-5853-4df3-a8de-9ab964b86196","originalAuthorName":"姜涛"}],"doi":"","fpage":"1523","id":"8d9c21ad-4aca-4c4b-b375-3ba11158ebd7","issue":"7","journal":{"abbrevTitle":"ZGYSJSXB","coverImgSrc":"journal/img/cover/ZGYSJSXB.jpg","id":"88","issnPpub":"1004-0609","publisherId":"ZGYSJSXB","title":"中国有色金属学报"},"keywords":[{"id":"2df26c5e-0848-41a0-a916-ed2b5378ad25","keyword":"砷","originalKeyword":"砷"},{"id":"bcc1ae5c-390b-4780-80c0-63349d3d20ea","keyword":"含砷铁精矿","originalKeyword":"含砷铁精矿"},{"id":"ea0517f4-1c3f-4f40-a6dc-6be06b3d3f53","keyword":"焙烧","originalKeyword":"焙烧"},{"id":"577b4339-6069-4ec0-80ab-616f424b6744","keyword":"气氛","originalKeyword":"气氛"},{"id":"e8a9f295-18a2-485a-8ede-da9fd0254d11","keyword":"挥发","originalKeyword":"挥发"}],"language":"zh","publisherId":"zgysjsxb201607021","title":"焙烧气氛对含砷铁精矿球团中砷挥发行为的影响","volume":"26","year":"2016"}],"totalpage":1,"totalrecord":4}